I don't know if I'm getting sick of it exactly, but I certainly have a lower tolerance for characterization misunderstandings or OOCness in Star Trek '09 fic. You have over 30 years of canon to fill in gaps your characterization, I will hit the back button if Spock says Vulcans don't feel emotions. (I see this a lot.) I tolerate mischaracterizarion in other fandoms (to a point), but I get weird about Star Trek.
Re: What fandoms are getting tired of?