Well, give us a link and we'll check it out. But the problem with starting a new forum is getting a returning user base that contributes. It's the same network effect that is now giving bitcoin its strength. Because of the permutations of the participants, the power of a network is proportional to the square of the nodes, and right now bitcointalk has the most power in that regard, with /r/bitcoin probably in second place.
Setting up the software for a forum is the easy part. Getting the community is an art.
You could easily set up a forum where you pay $10 to join, where the mods will drop the hammer if they even smell a whiff of scams, ponzis, cargo cult securities, furries, Atlas or dank. Then you could have a solid community of people actually trying to make bitcoin into something useful, instead of the infinite loop of scams and scam accusations.
Or make it into a massive brain trust that makes the biggest ponzi in bitcoin history.