There are few moderators working the boards at the moment, although we hope to change that soon. Right now, if you have a problem, you should message one or all the mods to act:
Staff writers who can also delete items but may not be around much.
In general you can guarantee a post deletion where you've posted personal material accidentally or someone else has done so about you. Other deletions will be considered. Mere embarrassment at your own stupidity isn't reason enough to delete a post, particularly if everyone else is finding it hilarious.
People posting racism, sexism, transphobia, general out of order awfulness, spam are generally ripe for a banning but sometimes one post isn't really enough. Worth pointing out several instances if you're going by a prolonged attack of dreadful as part of a ban request.
Posts containing racism, sexism, transphobia, general out of order awfulness can also be deleted. However, deleting a post destroys all the replies to that post and sometimes it's better to leave it stand if the replies are a good indicator of how wrong the post is and turn the thing on its head.