can't that be threaded through the user table?
for instance, anytime a user has activity and stored into db it should attach the user id to it....and the "delete" button could be tied to the "delete" function which would delete all occurrences of the users id-activity ?
but then - what would decide what is left behind?
you'd want that user's forum posts (especially if they interact with others' posts) right? maybe make those certain posts a "read only" that you cannot interact with that person anymore (no more clicky links to pm/website/profile, etc.)
hmmm
i was mainly concerned about when i create test members to delete them asap once i'm finished (for browsing purposes) - phpmyadmin is fine, but i liked the "one touch delete" feature