So you don't want them to have a 'VOICE'?
Disagreeing is fine. Calling someone stupid or launching a personal attack will not fly. Calling a comment stupid is getting into a gray area. Be prepared to give as good as you get. There are "homers", optimists, 'Nattering Nabobs of Negativism', "realists", antagonists, & jokesters. Be prepared to be given shite for whichever niche you claim. Having an opinion is expected but crusading is a sure way to get yourself banned.
Welcome to all the newbies. Can't wait for DC Tom to tear into most, if not all, of you. You know you deserve it..if you don't, you will soon.
Lastly, and most importantly: YOUR AND IDIOT!