You should not except to be able to ever delete or hide your posts.
In an emergency, e.g. if you accidentally post your phone number or password, you can ask a moderator to delete it.
mb link to https://discuss.criticalfallibilism.com/g/moderators which has a ‘message’ button in top right – otherwise it might not be easy to quickly find a way to msg mods. IDK if that group msg will include admins, so mb work adding any admin users to the mod group. Stuff at the bottom of the FAQ links to https://discuss.criticalfallibilism.com/about which includes admins, but I don’t think it’s easy to msg them as a group (not from that page at least).
… open a new topic in the site feedback category and …