Aaron, don't get me wrong, I'm not decrying bronies- I just don't understand bronies.
One difference between bronies and fans of Star Trek or any other example of fandom is that Star Trek's target audience wasn't 2-11yo girls. I'm not aware of any other fanbase that is so large, and so far off from the target audience like the adult MLP fanbase.[/quote]
I really don't see the issue here. But then, I'm used to watching cartoons, and I know I'm not the "target audience". It's likely that most bronies are of the same mindset.
Another notable difference is thought-forming. Angus here isn't the first in trying to create a pony tulpa- there's a massive online community doing this, and it can't be found anywhere close to this extent in any other adult fanbase.
I am... aware of this thing. It's something I try to ignore.
Lastly, the adult MLP fanbase has a rather large pony porn community, which other shows aimed toward children seem to lack. And I can't help but think many of these 20-ish year old males are creating female ponies to have imaginary sex with. *shrug* But all these differences set the brony movement apart from other adult fanbases.
Well, porn exists for anything you can imagine, and I've seen porn communities for other shows aimed toward children. This sort of thing used to freak me out (this was around 10-12 years ago), though now, I just accept that some people have a twisted imagination.
Edit: Aaron, maybe I am decrying the extreme side of the fanbase. I'll have to think on it and get back to you.
It's been my experience that any and all fandoms will have their extreme sides. In this case, I'd say that part of it is relative youth (both the age of the fandom and age of the fans). I can only suggust stearing away from the wacky elements and just deal with those that are more down-to-earth. (which is what I tend to do)