Mo'cedes Mo'problems

Im brand-new to the site. I stumbled across it looking for info on Mercedes etc because my mom is looking into getting a C320. I belong to a BMW forum or two, and one of them has regional forums. This is a great way to keep the smaller gatherings from cluttering the bigger main events. Problems this might cause are people using the regional forums to post for sale stuff, as well as off topic content. Personally i like the regional forums, but i can see disadvantages. Just a thought.