I don't think anyone wants to sift through one while looking for the other. Seperate is much better.
Point taken on the "too much traffic" thing, but the latter problem they solve by just having [TUNE] at the start of the topic so that you know what it's about.

I think one of the things that can dilute forum communities is....too many forums. I count 37 forums here...there are probly reasons for that that I'm unaware of (after all you guys are administering the place and have no doubt paid it some thought and debate) but it does look a tad overkill at first blush.

On the other hand, having a forum specifically for oldskool trance or hardstyle encourages discussion about that that might not otherwise occur in something more generic, and sends out the message "we're a hardstyle-friendly place"....so maybe I'm wrong.