Well, I'm really not famous enough for that. Although it's been cool to meet some people who knew my videos and were like "oh hey, so you're the guy who made that".
I haven't seen it happen to far more popular editors that I got to hang out with, either. AMVs are really not a big part of North American cons to be honest, and there doesn't tend to be as much of a 'fandom' for AMVs as such - although general anime fans love it. AMV creators tend to hang out in groups, on the other hand, and honestly if you're an editor yourself you don't normally treat other people who do the same thing as you as gods of some sort - they're just buddies.
Otherwise, if anything, I've seen more of the opposite - people who've made an AMV and won something and decided that they were The Shit as a result, and wouldn't stop talking about how awesome they are because of it, and otherwise pumping up their own ego. That can get pretty tiresome quickly