You, myself, jur or anybody else can take ourselves out at any time we want, slamming the door or not. No, the world will not stop itself in its tracks. At the same time, when wishing to impose one's own rules, there is no problem starting one's own forum and inviting friends. The usual problem is of critical mass to move the project forward. A large conglomerate with variety of topics has its strengths in the amount of expertise and manner in which the topics flow, but then to make it run the rules need to be somewhat rigid and atmosphere at times not familial.