Wouldn't that just be an invitation for people to post all kinds of ridiculous crap and then when the trail is too obvious for anyone to miss, they just hit the "I Am Done Trolling You" button to erase their entire history and sign up with a new account to start all over again?
What percentage of the board would become "Account Self-Deleted By User" posts? 20%? 30%? Reading old threads would be interesting - if you could still figure out what the conversation was about...
Perhaps adults should realize that when they post things on a public message board on the internet, people will be able to read what they say for years to come.
[div class="excerpt" style="margin-right:3px; border:1px solid #bfbfbf; border-radius:0.4615em; box-shadow:-1px -1px 3px #bfbfbf inset;"]Opt-Out and Modification of Provided Information
Democratic Underground users may request that their personal information be deleted from Site records by sending an email to mail@democraticunderground.com. The Site will remove personally identifiable information from its records for any user that requests removal, provided that the users account remains inactive for seven days. Any user whose information is removed from Site records shall thereafter be bound by rules for All Users, as provided above, except that information in the public domain, such as a users forum posts while a Registered User, will not be deleted from the Sites records.
[font style="font-size:0.85em;"]http://www.democraticunderground.com/?com=privacy[/font]