One of our registered users (Crimsonblood) is suddenly posting comments that are showing up as Unregistered (we don't allow guests to leave comments).
Example here: http://www.photographyblog.com/galle...to=47409&cat=2
The photo was uploaded by Crimsonblood, and the second comment is also by the same user, using the same IP address, but the comment shows up as Unregistered.
Earlier comments that this user made today had the correct username assigned to them, and also a later one. Crimsonblood actually left this message on a later photo "LOL I guess that is what I get for clearing all my cookies and whatnot on Mozilla Firefox".
Anything to worry about here?