You may read the title and be like "Wha?" but no, I want to stop those long and very useful threads on the forum.
Why?
They are hard to find. They are not pinned/stickied in most cases and just vanish.
We DO have a wiki, where this kind of information could be extremely useful, easy to find, and permanent, as well as easily updatable.
I thus propose that the admins/mods begin to "encourage" posters to post their useful ideas on the wiki.
CLICKY FOR EXAMPLE: http://forums.spiralknights.com/en/node/67254#comment-553761
Is a wiki actually supposed to contain game suggestions? I don't think so. However, wikis also are flexible, so whatever.
What's worse however is that due to the very nature of a wiki, the suggestions could be edited and created by anyone, making the problem only worse by making useful threads griefable. Also, steam users(which I and many others are) can't access the wiki right now.