I don't mind the universal lack of origin so much as the overly complicated backstories. Cable's a great example of that. He's a soldier from the future--oh wait, he's really Cyclops' son, sent into the future to cure his techno-organic virus--oh, but then he was raised by Cyclops' daughter from another reality, who'd taken control of this clan of freedom fighters--but forget all that, he's the prophesied destroyer of Apocalypse, only Apocalypse keeps coming back and he's not even the guy who destroys him sometimes--oh, and then there's X-Man, who's kind of an alternate Cable from the Age of Apocalypse reality, but kind of not! Bleh, it's just too much. I could overlook it when he developed his god complex and became a really interesting character, but now that he's back to just time-hopping and being the mutant Punisher, it's annoying me again.