think there will be lots of reasons why vettel is being boo'd, theres been a gradual build up to this point where he is being consistently boo'd. I think how you win, in the minds of many viewers is as important as winning itself, and the way vettels done it has rubbed people the wrong way. A lot of it is probably misplaced and should be directed at the team etc if you think he has had it to easy with the fastest car because red bull have more resources or whatever. And i guess some people just see vettel as the manifestation of everything wrong with f1 right now, a dominant car cruising to the lights not being challenged whilst other drivers behind suffer because of tyres etc, your average person isnt interested in disecting the reasons for it, they just see something they dont like and vocalise it.
one thing thats interesting is whilst vettel's stock amongst many fans seems to be stagnating, or going down, especially after multi 21, his opponents, alonso, hamilton and kimi, have all seen their repuations improve as they continue to put in fighting performances and seemingly dragging less competitive cars into good positions. Red bull dont really have any choice to continue though, it would be mad to expect them to slacken off just becuase the rest cant keep up, but the sport would do well to try and at least convince the fans, that the playing field is at least a little bit level, then maybe it would seem a bit less one sided, and red bull are quite guilty of not taking part in the RRA etc so that hasnt helped. I can sum up red bulls current domination in a few words which is, all stats and no glory.
just out of interest does valentino rossi or sebastian loeb get boo'd as both of them were dominant in their sports? i'm just interested as i dont beleive vettel being boo'd is simply about him winning I think their is a lot fo reasons for it.