Oh! Oh! I have a related question. Can you merge usernames? Like, can you take two usernames, and merge thier posttotals into one? Like, if someone made a new username but wanted all the posts he made with his last one to still be editable, can you "transfer responsibility" of those posts (and retroactivly change the name on all of them from the old one to the new)?
Good point. I suppose the secondary account could be given a name similar to the primary account with the addition of an underscore on the end but anything would be patch job. If there isn't a "Merge Accounts" feature it might be worth sending an email into the software development team for consideration in future versions.