When I first interacted with the fandom, I at least had a sense that there was some love left for MLP:FIM. A sense that a group of people were coming together to mutually enjoy something that they'd been told they weren't supposed to enjoy. A pervasive attitude of, "I'm going to like what I like"; even if these words were sometimes uttered from inside a closet. I was encouraged, in earnest, to give the series a chance without getting an earful of overthought pros and cons. This led to my enjoyment of the first four seasons of Friendship is Magic; four seasons that the rest of the fandom had probably long since experienced.
And, the thing is: It was far easier for me to get something out of those four seasons when everyone else had already moved on. Nothing and no one interfered with my experience. Watching the subsequent seasons alongside the community has been... Well, how much fun would a social gathering be if two thirds of the room is occupied by people who do nothing but complain?
"The punch is too sweet."
"The punch isn't sweet enough."
"The punch isn't as good as it was last time."
"I hate the punch."
"I question the moral the punch is trying to teach me."
Actually, that already sounds more fun than co-watching with the fandom. You newcomers seem to still have that enthusiasm that made the fandom appealing in the first place. You're excited about the show, rather than afraid of it. "Oh, no; what's gonna happen THIS WEEK? Which pony are they gonna ruin THIS TIME?" Let's face it: You've lost interest. You just have. You're moving on to other shows and treating them like the second coming of FIM, but the same cynicism and needlessly critical eye that caused MLP to fall out of your favor will catch up with you.
MLP:FIM was never FOR you. But, at some point, a significant number of folks decided, "Maybe it can be." And now, at best, you really don't give a shit. You rode the bandwagon long enough to feel good about yourself; about asserting your appreciation for something the bad, lurking anti-Bronies mocked you for liking. Now I have difficulty discerning between this perceived "enemy" and the people who acted as though they were standing against them.
You wanna hate on colorful ponies? Good for you. You wanna have unreasonably high expectations for a children's show? Good for you. But if you're watching the show just to have something to complain about on MLPF... You might as well watch anything. You might as well be a member of the Nintendo fandom, Sonic fandom, or any other fandom under the sun. There's nothing standout about your criticisms and complaints; there's nothing standout about this fandom.
Anymore, at least.