I'm not gonna go into to much detail why GT is a total shit show, because it is kind of obvious. so I'm just gonna offer 3 suggestions to make it a lot better:
1. split it in two, make hard good talk and soft good talk
2. Require a post count minimum to make threads(this should apply to everywhere), many other forums have a 50 post minimum, this keeps trolls away greatly
3. start policing it more, make threads about outerwear sizing a bannable offense, or just delete them. If you feel this si to much work, make more mods, even if it is forum specific like many other sites do(aka give someone who is in GT alot mod powers there, but not in the other forums, do this with all forums