I think it all depends on what Dave wants this forum to be. If it's primarily for eliciting advice from fellow EE enthusiasts, or solving concrete problems/answering questions, the forum format probably isn't the best - there should be easy ways to search (e.g. tags), maybe(!) ratings for questions and answers. The stackexchange network sites seem to do a pretty decent job at this (e.g.
http://electronics.stackexchange.com/).
However, if the forum is also about discussion ("Why does MegaCorp not release a cheap version of their SuperTool(TM) for us little guys?!?", "What do you think of Dave's tongue angle at 16:34min in his last video?"
), I think the current form is just fine. It's nice to have a place for it, and there is no requirement to read every single new post (I'm also guilty of simply clicking "Show unread posts ..."). A little bit of order with sub-forums even then is certainly helpful.