Torquay fan and a ref in peace. I also kind of support Liverpool, so I was supporting City today.
However, I have to say I thought the red card was correct. Watch Kompany's right foot. If it impacts Nani at that angle, with studs showing, with that force, it's doing him some serious damage. It was only luck that contact was minimal. Law 12 states that
A tackle that endangers the safety of an opponent must be sanctioned as
serious foul play.
Given that it was by pure luck that Kompany's studs did not have heavier contact with Nani, I have to agree that when he made the tackle, he endangered the safety of his opponent.
I also think that some of the things you've said about Chris Foy are disgraceful - like telling someone to 'bomb his car'. I don't believe he made a mistake, but even if he did, it would be an honest one - no different to Silva missing an open goal in the 90th minute. If you had lost 3-2, with no red card, but Silva had missed an open goal from 2 yards out in the 90th minute, would you advise each other to bomb his car?
If I could advise Mancini, I would advise him not to bother appealing - any appeal is doomed to fail. The commission will take an even less human view of it than Chris Foy - they will look at it as a studs up tackle that could have broken an ankle, and will rightfully dismiss the appeal.