Sorry for the short and incomplete question Kathryn. I’m asking about the front-end editor of the P2 theme, for both posts and comments. I was wondering if it’s markdown or something else.
I could not find any manual, reference or instruction in the P2 website.
Well, I would put the link in the workgroups page of the brazilian community: http://codex.ww.wp.xz.cn/pt-br:Grupos_de_Trabalho
You can try a filter to return only the relevant users — the ones on latest posts and comments. I tried it and at least i could solve the mentionData size.
https://github.com/wpbrasil/wpbr-participe/commit/c25871ad77ae6637c7e2ee801d8722fff344a845#diff-78cd5aa3783a74555c9938a2a81d01c6R18