I'm not surprised by this - trolls are a reality of any rating/comment system anywhere. Doesn't really matter, if he's a Bioware employee or not, cause those guys are human, too... and are certainly not flawless. If he really were an employee, however, I strongly doubt he acts on behalf of Bioware there.
It's funny, though - while this guy is bashing the game way before actually having a chance to play it, some of you guys are practicing the other extreme: praising it like it's the second coming of Jesus Christ or something, that it completely destroys Dragon Age or whatnot.
I'm wondering - you're saying that because of the pretty trailers or did YOU actually had a chance to play through Witcher 2 already? And why do you complain about the one really negative review, while there's a whole bunch of perfect 10s in there as well? I guess as long as those idiots agree with your opinion, you don't complain, eh?
Not bashing the game, though... I hope it's as brilliant as most Witcher-fans make it out to be. I'll just hold my judgement - ANY judgement - until I've actually played through a fair potion of the game.