The longer his career's gone on, the less I like him. He was most impressive early on, and when he beat Shogun it was like, damn he's amazing.
Then he started to be known as a dirty fighter. Oblique kicks, fine, but the eye pokes are a real piss off. You've got this guy with incredible physical gifts, he has the height and upper body of a HW, but his legs are skinny so he can fight at LHW. Longest reach ever except for a guy who's almost 7 feet tall. And what does he do? Sticks his fingers in people's faces constantly. I don't think he was in a title fight during his best years where he didn't poke his man in the eyes. He couldn't compete without it.
When he fought Gus I thought he scraped by because of that big spinning elbow. Later on I changed my mind about that because Gus didn't go down and was still defending takedowns. Jon is so lucky he got the nod that night because it would have dramatically altered his legacy. No LHW defence record.
Then after that, those are his PED years. And I don't care about his criminality, but I think that attitude extends towards his cheating in the cage. First Cormier fight, something's fishy. Beats OSP, later stripped for PEDs. Rematches Cormier, stripped for PEDs. Rematches Gus, they had to move states because of PEDs. Testing commission invents a reason to explain it.
I dunno it's just a farce now, so many things about his career are fake. The idea that he doesn't train, bullshit, he takes this more seriously than anyone. That's part of the reason why he's so good. Then guys like Stipe get roasted for beating people older than them, when Jon built his career off the backs of older champs and gets praised to the moon. Or how someone Jon beats can improve after, fans go "that win is aging well", but if they start losing after it becomes "WOW Jon takes dudes' souls".
I think people just like to cheer for a guy who they can say never lost. The 'psychopath' shit really took off with the Cormier rivalry, and those are the fights where Jon had the most eyes on him. They are actually the lowest point in his career, but people still love him for it.