I like genderflip because I like exploring gender issues, so I tend to seek it out in fandoms I'm in. Alas, there is a whole lot of the 'ships two male characters but doesn't like slash' out there. One of the characters gets genderflipped through some magic spell or alien artifact, and they realize they're in luuuuurve with their best friend, and they can't fix it and they live happily ever after! Now, I'm not generally a slash fan myself, but the complete disregard for the massive gender identity issues involved is simply made of FAIL.