Hello,
There should be authorisation from Moderators to members to delete their own post if they want.
It is not somethng the moderators have control of.
The people who run the site (admin) have said that they do not plan on allowing people to edit their own posts. Personally, i agree - too many people would re-write history
It is really not a bother to me to correct something now and again. Do you want the entire topic to be deleted or just some post in it?