[Orgmode] Proposal: delete on DONE

[George Pearson]

I would like to suggest a feature in which, when a task is marked done,
the task is deleted, i.e. no trace of it remains.

I have a number of tasks to do (e.g. "reply to Jeff's email") that I
have NO need to have a record of performing.  Currently, these DONE
tasks just pile up in my org files and I need to go manually through
and delete them, a time consuming process.

Would be nice to mark these tasks "delete on done" when created, and 
this "flag" could be checked in the "done" processing.  Perhaps the  
logging property could be used, or is there a better way?

Unfortunately, I have no lisp programming experience to speak of...