When he/she/they comes clean about their gender, I will use whatever gender is appropriate.

Until then, all we have to go off of is the most likely gender based on the information we have, and since a good portion of the antics at BS involved wank over the cunnilingus meme and the fact that, again, there's a high probability this person is afab, then she was what I defaulted to.

Would you prefer I defaulted to the mainstream-society-standard He instead? Either way, it's interesting that you're deflecting criticism away from the person throwing shitfits by being pissy about someone using a gendered term.