It became associated with aggressive internet shutins bleating about Pickle Rick and the szechuan sauce, although it's hard to tell where exactly the line was between "these guys are losers yelling and being obnoxious at McDonalds," and "stop cyberbullying we're all just internet weirdos who like a funny cartoon and that is fine." And then, Justin Roiland had some kind of sex abuse allegations and the worm turned and the world is officially supposed to hate Rick and Morty now, I think.
I mean, allegedly. I'm with you; some of it is still some great funny shit.