Talon has fixed the old ability to tag games to threads, so this should work again for everyone now!
It's been broken for a very, very long time, so many of you probably won't know how it works:
Basically, when creating a new thread, if it relates to a specific title or several titles, you can link those games to the thread, using the 'Add Game' box at the bottom of the thread submission form.
Doing this ensures the games show up at the top of the thread (so for this thread I added the fake ioi and ioi 2 games, for illustration purposes), so that users can easily click through to the game pages. It also ensures the thread you created shows up on those individual game pages in the database, under the 'Forum' tab (e.g. http://www.vgchartz.com/game/33943/ioi-2-the-return-of-ioi/forum ).
Talon also made it retroactive, so all of the old tagged threads show up on the game pages, from back when the feature was first introduced.