I assumed the question meant "user." As far as I know, Facebook never really deletes your data anyways. Far better to unfriend your real-life friends (message them first) and delete your existing posts (or "faux-delete" in reality, haha user!) and then fill your account with random, fictional garbage.
Carrying this on further - I have a MySpace account as well. I haven't logged on in 5 years, but I do have one.