I've been part of the fandom since February '11, and it's turning into a "bandwagon" thing with each passing day. Just recently at one of the conventions there were fake fans of the show attending just to harass the real fans of the show. I absolutely love 90% of this fandom, but it is definitely deteriorating. Although I don't spout the whole "love and tolerance" motto, I do agree with it to some extent, and it's annoying to see so-called bronies intentionally aggravating people who dislike the show. Some bronies hate people who dislike the show, the people who dislike the show hate bronies for trying to shove the show down their throats at every chance they get, cloppers hate bronies because of obvious reasons and the cycle goes on and on and on. Anyway, to answer your question the characters of the show have the most endearing, awesome personalities ever (IMO) which is why I love it. There's not just that, of course, but I've rambled on long enough.
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-- Logan