I have the same problem with being bored by a lot of TFA fic. Not so much here on the kinkmeme, because I think prompts encourage creativity, but in other places. Tumblr, and AO3 mainly. There was a time in the first few weeks after TFA came out where nearly every Finn/Poe fic on AO3 had exactly the same basic plot. I know this is still a new fandom, but it seems like it's less imaginative than my other fandoms. Still maybe that will improve once it has been around for a while longer.
Re: How long do you stay in fandoms?