Deleted @goofyballer at his request and after a cooling off period.
Prior to deleting his account, I changed ownership of the original post in all public threads that he started (to new user @ThreadStarter). So, assuming that was done correctly, no threads were deleted.
For anyone looking in the logs, you’ll see that I changed some settings in order to perform the deletion (maximum post deletions per minute, maximum post deletions per day, maximum post age of deleted user, and maximum user posts that can be deleted). All of those settings are now back at their original values.