Post Changes Question

[ozzy47]

There was a post on here that someone posted, and now the title has changed, and some of the post content.

Not only that, I quoted the post, and my post is also changed.

There is no signs of the posts being edited by anyone.

Question being, do some of the staff here edit posts, and not show up with the message, "Last Edited By" or are they altering the posts in the DB?