Actually he specifically made one claim about how he's been since at Utd, and when people called him on it, he decided he said something different and has generally been arsey about it.
he's had a go constantly at Young since the beginning of summer IIRC when it became clear he was leaving, he has not stopped calling Young arrogant and petulant, yet can never once come up with an example.
Diving git wouldn't be a bad thing to call him, though he started diving REALLY badly, what 2-3 seasons ago literally right after his first England call up, was awful for a season and has stopped doing it, not completely but he's no worse than most. For one season he was one of the worst 2-3 divers in the league. Thankfully I do think he's stopped doing that, and I do think someone told him thats the way forward, and has since decided or been told not to do it anymore.
Aside from the diving, never seen an issue with him, at Villa he was the main man, because there wasn't anyone else. Gabby shows good form in spurts, but not enough, Heskey, lol, Carew had one good season then was useless, by and large the team has completely relied on Young since he joined, and so he takes more shots, takes more responsibility and keeps more of the ball, so what, thats bog standard for the best player at most clubs.