This surely isn't what you want/mean -- but related -- long ago I had the idea for list-owner command "SET username BOZO". That would be a list option so idiots only see their posts (so they know list works) and no others (so they think list has dried up) and wander away. Similar to https://en.wikipedia.org/wiki/Shadow_banning
---------------------------------------------------------------------- For IBM-MAIN subscribe / signoff / archive access instructions, send email to lists...@listserv.ua.edu with the message: INFO IBM-MAIN