All of those were completely different incidents that deserved different punishments, so you can't make an argument based on consistency. The only one that was vaguely similar was the V sign, and I agreed that he should have received a ban. Anyway, punishments are handed out for various incidents all of the time in football. Sometimes they are too harsh, sometimes they are too lenient. You can't just take a select few incidents that weren't punished harshly enough, compare those to ManU's and then claim that the world is out to get ManU. It's a terrible argument. I could just as easily dig up every punishment that was too harsh in FA history and then compare it to every time a ManU incident was leniently punished and then claim that ManU gets off too easy. We could do this for any club.
This is what bothers me, every time there is a ManU incident everyone immediately goes around complaining about how unfair the FA and referees are toward ManU. They made an example out of Rooney so he didn't get off easy (I would've given him a one match ban), but in general, the big clubs in any league tend to get calls in their favor. Maybe with some of the off the field stuff they sometimes get it a little harsh because the disciplinary associations want to make an example out of them (ie Grant's comments probably would have been punished harsher if they came from Wenger or Ferguson), but it's annoying to hear fans of big clubs complain about getting unfair treatment when they get calls in their favor all of the time.