CB is pretty popular on other websites and on youtube, even though the official forum is made up of about 10 active users and one troll that MUST GO AWAY.
Well, that might not be a bad thing. Just imagine all the pewdiepie fans would migrate to this forum. No offense, but they would completely shift the main subject of the forum in to something different.
Plus, the game development is kinda build tight with a forum, making something like a ochlocratic system. As many people know, anarchy or ochlocracy are going to work in only small groups of good people, not an uncontrolled horde of ignorant teenagers.
No offense to any Pewdiepie fans, like brownies, there are a lot of good people, but some are really arrogant individuals.