What annoys me the most at the moment is the whole act of splitting the world into regions for digitally distributed content. It feels like they are trying to impose their imaginary boarders onto the internet as well, and I don't like it one bit. For the last decade, the internet has unified the world of communication and information, but unfortunately, the worlds of trade and politics lags far behind. Rather than trying to adapt themselves to the new age, to bend and reform the old rules, they instead clinge unto the old ways that no longer works in the modern world. I guess it is true what they say; you can't teach an old dog new tricks. Well, it is time for that old dog to step aside and let the next generation step in.
In my opinion, only because I'm an European doesn't mean I shouldn't have just the same online opportunities as an American.
Being unable to buy a game just because I don't happen to live next door, and if I can buy it, I'm way overcharged in non-converted Euro's. Largest and stinkiest load of bull I ever saw.
I know regionalism has always been part of the industry, but it has never been more transparent, or more bloody unfair than it is today, making this my number one gripe, not just with the gaming, but with the entire 'global' entertainment industry in general.
At least GOG treats everyone equally, and so the industry has a lot to learn from this place. Everywhere else, like Steam, Gamersgate, and Impulse, I start to feel like a lower-class costumer.
</rant>

I don't have a problem with posters complaining when they are duped into spending £40 on a game that is nowhere near as good as it's made out to be. Especially when reviewers are giving out high scores to something that doesn't deserve it.
I could list a lot of them but i won't, since i bought a few of them myself.

They won't make any games anymore.

I don't have a problem with posters complaining when they are duped into spending £40 on a game that is nowhere near as good as it's made out to be. Especially when reviewers are giving out high scores to something that doesn't deserve it.
But that's the point. These people never learn! They get hyped for game A believing it to the best thing ever, then find it to be crap, and immediately start getting hyped again for game B which will inevitably wind up the same. Why be so stupid to fall for that hype a second, third or even two hundredth time?
But it's the same damn cycle every bloody game. Wise up people. Please!

True, i know kids are terrible for game hype, show them flashy graphics and they're sold, but It's not always a matter of people being stupid. Some hyped games do get average and low reviews so people know to stay away.
But how are people expected to know a game is rubbish when everyone gives it a high score?
The game reviewers are paid(or supposeed to be) to give us their honest opinion on if somethings worth buying and they don't seem to be doing that anymore.

But how are people expected to know a game is rubbish when everyone gives it high score?
And there's the other problem, why constantly base purchases on reviewers who are being paid to write reviews? These people are almost always being pressured to write good reviews -- after all, when they don't, the publisher gets pissed and threatens to never send review copies again.
So stop listening to these people. Listen to those who have no invested interest. Then perhaps, people can start making up their minds based on peer feedback.

I use metacritic now as it combines upto 30 reviews and averages out the scores. And even if the reviews are biased the user comments usually tell you the truth.

That is usually what I go off of. These days I'm also paying more attention to gametrailers.com reviews, as I like how they usually focus on both the negatives and the positives.
I usually wait and listen to some of the worst/best reviews on Amazon products and usually base my purchasing off of that. Combined with the fact that I'm rarely one of the early adopters, I usually don't feel that I get screwed over.

I'm sure there's a lot more, but here's some.
I"ll start with 10.
1. Install limit activation DRM
2. Online activation DRM for a SP game
3. DLC getting released on console version of the game, while the PC version won't be getting DLC (see PoP 2008, TR: Underworld, Saints Row 2)
4. Games released WAY too early, causing the game to not perform well technically (see Gothic 3)
5. Ridiculous system requirements
6. Lack of patches for certain buggy games
7. DLC offering barely any content being over-priced (FC2: Fortune's Pack, Mirror's Edge DLC, Oblivion: Horse Armor, etc)
8. Piracy being the blame for poor game sales on a game when it's MORE than just that for a reason
9. Cliffy B being....Cliffy B.
10. Gears of War 2 STILL not out on the PC....yet.

User reviews at gamefaq are pretty decent. Tough for REALLY new games, and they suffer from the problems you would expect from user reviews. I generally check out the moderate scores and the abysmal scores, then try to peruse some high scores. With high scores it's fairly tough, but if the title of the review is actually decent (i.e, not "THE GREATESTS GAME EVARRRR" or somesuch) then I figure the review might be as well.

My top annoyances:
1) Mainstreaming - Games are getting more and more like movies, corporation-based and advertisement budgets larger than game development budgets, as well as games designed by executives who never play them. Everything is made easier, simpler and less involving.
2) Reviews are worthless - Seriously. AAA games get great reviews and their negative aspects are ignored... less high profile games get every little problem examined. Average games are treated like trash because 9.0 is the bottom of the scale for a great game because of inflated scores. PC vesions are often never touched, and console version scores just copied and pasted. Concentration on number scores prevent actual thought and discussion or subjetivity to come into play.
3) Console dominance prevents PC games from advancing - Self explanatory, graphics and gameplay hit a wall and don't progress until the next console comes... more obvious this generation because of massive console dominance. Console games even more dumbed down, and those simple games ported over unchanged.

1. Any form of DRM that is inherently invasive and potentially damaging.
2. Install limits, regardless of the above.
3. Regional price fixing and availability.
4. Unfinished games that could have been awesome.
5. The tendency publishers have to completely alienate their consumer base? Is there another industry that's this stupid?
6. Steam's offline mode and other DD sites in general.
7. Seeing great IP go to waste. Shadowrun is one example.
8. Fanboys & fangirls.

One of the few console games I have played through and really loved was Shadowrun on the Super Nintendo. I also played the Genesis version and liked it, but remember it being the lesser of the two (of course I was young, who knows now).
I would kill for a modern Shadowrun RPG with a real PC version.

I too loved the SNES game. It's also backed by a substantial pen & paper game. So seeing it reduced to a shallow, broken CS clone was disheartening. Given that Weisman (the creator of FASA) has licensed Shadowrun from MS, there may yet be hope for its proper use once more.

Console's.
People who think Console's are better then the PC in anyway.
People who PAY for games to play on there console's.