I'm gonna have to agree with Orion here, having personally seen both fandoms online - and known a few furries in real life as well - both the furry and brony fandoms appear to suffer from two identical and very related problems (not to say that other fandoms don't suffer these problems, but these two more so than probably any other I've seen):
1. The vocal minority/silent majority:
In my experience, the most common brony or furry you will find are the ones you don't actually see: those people who go about their daily lives without a hint of any kind of enjoyment from their respective fandom, relegating all their conversations and obsessions on the subject to the internet. These are the people that would surprise you when they laugh after you make an inside joke about the show, or make a comment about the cool wallpaper you have on your computer, etc.
The other side of course, are the few people who the stereotypes are based on: These are the people with such an outlandish or unique personality/attitude, that they draw the attention and/or ire of everyone around them like moths to a flame. Everybody loves a spectacle, and so these are the people everyone talks about and assumes to be the rule rather than the exception. This brings me right to the second problem both communities share:
2. Poor media spotlighting:
As I said, everybody loves a spectacle, none more so than the media. After all, bad news sells, good news doesn't. And so they bash on said communities because such a juicy target as those people can often make themselves are a hard target to pass up. This leads to the general populace taking fringe stereotypes as absolute truths, such as the piece on "cloppers" that EQD was talking about a while back, or that all furries are fursuiting sexual deviants (or the stereoptype from when I was a kid that Trekkies only watched the show for the green woman, but that always seemed like more of an in-fandom joke).
Edit: also, please forgive any incoherency in this post, as it's way too late for me to be trying to type anything that makes any kind of sense whatsoever.
Edited by Kasai Oni, 15 August 2012 - 08:51 PM.