I have seen something similar to this on another site but it's not very well implemented. Would it be possible to have analysis saved in the pgn file of a game.
ie, i've just finished a game. If i open the analyse board i can add comments after each move. Once i've written my comments, i publish it to an analysis area. Other users can search games with comments and add their own comments, thus allowing people to group analyse with ease.
This wouldn't work in the forum. Once someone has taken the time to do the analysis it should be available for people to read, without it disappearing into oblivion after a couple of days. This would allow stronger players to give tips to players without having to go to loads of trouble.