the forum is too big trying to cover too much, is too fragmented which makes browsing topics harder and unorganised, several forums cover same things (like "Game Design" and "Project Planning & Design"), i suggest these changes:

the forums should be reordered by the importance, for example sound is more important than AI (ok, we can argue about this but i hope you get the point)

Delphi, Free Pascal, Kylix, Lazarus forums should be put into an own subcategory "programming tools"

tutorials & help forums could be merged since they deal with same thing, tutorial topics could be pinned there.

network and input could be merged (since technically network is a method of getting input)

game design & getting started should be merged, since if you fail your game design when getting started on a project you're screwed up badly.

"Project Planning" & "Design technical & creative" forums and "Game Design" should be merged into a single "project design" forum

a new forum named "ART" should be created, this forum should have three sections:
3D modeling
2D texturing & sprites
Sound & effects