I reserve the right to delete/edit/restructure entries as I see fit. Especially when I make myself look like an ass (done frequently).
I saw someone saying the other day, “so-and-so (name changed to protect the innocent) can’t go back and edit entries. If you don’t want it to be permanent don’t post it.”
Truth be told, most people with weblogs aren’t professional journalists blogging for a news source. If they were, they wouldn’t be posting their stories in their blog now would they? So it’s OK for them to go back and ammend their article or change a few words around or even delete the whole entry.