Hi Dave,
I'm personally a fan of double posting. I post everything I do in my own customs thread, but I also like to make sure those most interested in the subject of my custom see it in its most appropriate thread.
I would not mind if each section had its own customs sub, but I like it better when things are mixed up in other sections so you always have something unexpected showing up, not just the licensed stuff people reply 100s of 40-post pages worth about.
If each section has its own sub custom forum, I think there is still value here in this forum since customs can be anything, and not just stuff that needs to fall into a genre. Likewise, it's nice to come here knowing I'm going to see unlicensed stuff. This forum is like a box of chocolates...
Also, this forum is for people like myself who are prolific in customizing and painting who like to showcase the sum of their work in one location where fans know where to find it and can check back regularly to see what we've done lately.
I don't see a problem with custom subs and feel this forum would still have value, but I went ahead and voted 'No. It's fine the way it is.' This site works for me as is. If it aint broke...