You are about to delete your account, this means it will be completely erased from the database, but your contributions will remain, their authors name will now be shown as `[Deleted]` instead of your username. Internally, they will still have your old id set as the author.
If you wish for all your contributions to be seen as been made by a guest (no author id) instead, you can check the checkbox below. Then they will completely loose their authorship info.
If you want to erase their content as well, please enter the string `DELETE CONTENT OF ALL COMMENTS` in all caps into the appropriate input as well. But I would urge you not to do this unless absolutely necessary. Don't we all hate coming up on an interesting thread on the internet only to find the most important/interesting message has been deleted?