How about splitting up the forum: one being a diet forum and the other for supplements. That way people who want to discuss supplements can, and the "regulars" can talk about chocolate and read the same stickies over and over.
This is a discussion forum, right? Not a I'm going to tell you what I want, and if you want to talk about something else I don't agree with, I'm not going to let you discuss it forum.
What if someone wants to talk about a supplement that will help them bulk, maybe like one for recovery or creatine or different types of protein...whatever? What if they already know about dieting but are wondering if a supplement can help too.
There's a lot of closed minds here...or more like sheep following the rest of the heard. The sheep don't really know what they're talking about, but since the shepard told them, all of a sudden they're an "expert" too. I think people here can decide for themselves what they want to believe.
I read one "regulars" response to someone asking about some supplement with an X at the end. His reply was something like "Well, it has an X at the end of the name so it must be crap." That's being closed minded.