The point about Best acting up - twice - above, is a good one. Roy Keane effectively held United "ransom", like Rooney did in 2010, threatening to leave for Italy if he wasn't paid more. Yes, the circumstances were slightly different, but Keane showed no absolute loyalty to the club either. He very much put himself above both club and manager at the time. As he did later too, when he publicly criticized Fergie's pre-season plan. What's my point? That Best and Keane were very different personalities compared to Rooney. They were both free spirits, regarded and accepted as such by the fans. Keano's various outbursts over the years have generally been met with "that's just Roy, he speaks his mind," even when he has come out and disrespected Fergie in a way Rooney probably wouldn't dream of.
Just pointing this out, it's not an apology for the fat (or formerly fat) scouser: He's nothing to Best or Keane, neither in terms of footballing ability nor charisma or general likeability. But it shows the irrational nature of fandom. What is unforgivable when done by a scouse chav with fake hair is easily tolerated when done by someone more tasty.