Main Story Roulette specifically I hate. Once I got all my jobs to 80 before Endwalker came out, I made a promise to myself to never play that awful roulette again. And I haven’t. And I never will. And I’m happier this way. Also I don’t like Bozja. It’s ugly.
As for why people stop playing for everything else? I dunno. I like the rest of the game though.