I'm on the verge of falling out of the group.
I wasn't part of the initial inception of bronies, but I was pretty early. I joined at about episode 5 I think, and found it through 4chan, so I do consider myself one of the first few.
However, what I think most people don't get now is it always had a massive sense of irony about it. Yes we did like the show, but we never took it too seriously, it was almost a massive injoke, and for that reason everything we could come up with was A-ok.
And now it's turning into the new sonicfags fandom. It's reached too great a point, and far far too many people take it way too seriously. I have a friend who got into it at the back end of season two, so is pretty newblood, and he decided he doesn't want to watch totalbiscuit anymore as he insulted bronies (for the record, I would say don't watch him anyway because he's an unfunny prick, but that's just me). My god that made me facepalm so hard. We watch a show about fluffy pink and rainbow ponies, don't take it so seriously, if someone makes fun of you, shrug it off.
Then you have the endless numbers of mary-sues, all of them having their own little crappy story, all of them seemed to be shipped with fluttershy or rainbowdash. I would say it's creepy, but I think it passed that point long ago.
I can honestly say the last genuine time the community made me laugh was good old Hoppip. He happened to share a lot of the views I did, and some of you might remember him for the Lyra plushie. That to me was hilarious, and a real hark back to the old 4chan days, back when it was a fun little joke, something that never was meant to be taken seriously. But of course, the vast majority of bronies said it was an outrage.
And for those who just overuse it, the terms "love and tolerate" and "everypony" were once again never used seriously, it was dripping in so much irony that you could have drowned in it.
Call me an old purist, but now that the fandom is trying to take itself seriously, it's become an even bigger joke in my eyes. One I'm not sure I want to be part of anymore.
Edit
Just thinking about it, want to know who are actually the most tolerating bronies? The ones who don't take it so seriously, because no matter what anyone drew, wrote or said, even if we didn't like it, we laughed. Now we see the endless streams of hate from those dislike R34, or violence, or shipping, but then it's also these people who will scream the hardest "Love and tolerate" to defend themselves. Reminds me a lot of republicans and free speech when I think about it.