Adventure Time doesn't have any characters I can identify with. Finn is some annoying selfish brat and Jake is pretty much a demi-god who's also always 2chill4me.
The Ice King has an interesting backstory, sure. And he starts acting differently in later episodes. The show has an interesting backstory. But I can read up on that and it's over. And eventually the whole "Ice King is some pathetic, crazy old dude" thing gets old. Okay, he has a sad backstory. Done. Don't make a whole bunch of episodes about him being pathetic and evil and expect me to feel something for him.
And Adventure Time isn't the only show with a bunch of flawed characters, it's not special in that regard, and I'm just pointing that out because I'm pretty sure someone listed that a reason for it being good once.
The only ways it's special are that it's original and creative, like you said, and that it tries to force fucking feels into almost every episode.
The emotional bits feel wrong because I just hate all the characters involved, they don't work. They're even worse if there are shitty songs involved.
And then the originality is nice but sometimes it gets weird, e.g: arms being replaced by flowers and trying to punch your dad to death or something
As you can see almost every interaction I have with anyone else on this imageboard is a god damn argument.
Are you going to make me like Adventure Time anyway? Am I going to go around and tell people to stop whining about things and magically make them stop? Are people going to convince me to put up a name and socialize on a board I don't even like?
I'm an angry jerk right now, just get rid of me, someone