Yeah, a detailed review system would be perfect for this site (actually I just like the idea of writing detailed reviews for games), but if anyone wanted to actually read them we would need a good system. Either voting on them or individual checking, which could include some form of a black list, also maybe a level pre-req for it.
Re: Bugs section of comments – There are features for this, ie send a bug report and whispers. It is important that these stay seperate from comments as “whoa found a bug! pausing doesn’t stop time giving you a potentially unlimited score!” might tell people who had yet to learn of the bug of it, and they might abuse it for high scores.
If there is a problem that should be told to the general community, ie having to do B to reverse the unintentional problems of A, usually I find users posting them in the comments and then other users reposting when asked, so it shouldn’t be too hard to find what you need.