Most of mine are stuff I'd be mortified to admit to the respective fandoms, but they might not really be secrets because if I had rl friends into the same fandoms, I'd probably tell them outright if the subject came up. I mean, you're not supposed to take fiction that seriously irl whereas on fandom it's more normal to dogpile somebody for an unpopular opinion, so ...
Re: How many of your secrets are actually secrets?