Thank you, I've removed those ones now.

For the crossover fandom tags, I'm still not sure what to do about duplicates to fandom names like that. For now, I'm leaving them all in, as some people might have signed up to different events that used different versions of that tag, and so each tag alone might not pick up everyone who is requesting crossovers. But in the future, ideally, it would be good if I could standardize the fandom names and automatically convert the variations into the standard name. I'll look into it next time!