Surprised if he doesn't get in trouble for that behind closed doors, a rollicking from Warnock definitely on the cards I would say. Shouldn't be talking like that about your ex club, regardless of how correct or not he may be.
Great tweet from him, and he is a top bloke (from what I know of him), but I don't think it was a major issue in letting him go. He was a decent defender, but nothing special and always prone to a clanger (based on all his games, not just his last 4). If Bramble hadnt got himself in trouble, I doubt we would have noticed him leaving.
Anton is a very good player and we should have never sold him IMO. Barring the odd nalls up like against pompey I always couldn't see what the nay sayers had against him. Right back or center half always did a solid job for me. If I ever meet John Terry think I'll twat him for Anton.