I'm far from regulating such a free thing like a forum; I only started the Snowtrooper Pic thread after thinking about how I felt when I started as a 100% newbie (I'm now an 100% rookie ...) and thought, a link collection via Quote with some referencial pics would do great.
I understand that people won't post their work under ONE thread title like "1/6 Snowtrooper Customs" because it will be a hell of a chaos, mostly when questions are being asked. So I think one thread with Snowtrooper only by one artist would be the best. But I'm also kind a fine with how it is. But if people startr an own thread for one figure (or theme like cantina), another idea strikes my mind ...
One suggestion, which is only a bit regulating, but might prevent the chaos:
I know from smartphone custom os forums that ruling the thread names can help sort things out.
People name those threads like:
"[YEAR-MM] - CHARACTER NAME - BY - MEMBER"
a.k.a.
"[2010-08] Snowtrooper / Stormtrooper in Hoth Battle Gear BY TheGent"
and the members update the name to show how old the last update is and fill the first two or three reserved posts with pictures while other posts and comments follow the usual rules.
What bothers me also: Although I'm sure it's a forum software itch, I somehow can't find any thread with C-3po or r2-d2 via the forum search function. Maybe the word is too short, maybe it's the combination with the minus, I dunno.