In 1990, I created Y-RIGHTS - a mailing list for the rights of
   kids/teens when I was 18. Ran it for a few years. David Deutsch
   was one of the members. Him and a friend were into parenting
   rights. The two of them were talking in a style too academic for
   the style of the list, so I showed them how to start their own
   mailing list. That became Taking Children Seriously (TCS) - it's
   still around today. He talked WAY over my head at the time as
   well as most others, and it was cluttering up the general
   discussion. I didn't exactly kick him out - he stayed a member
   and participated... I just wanted them to move their heavy
   discussion elsewhere.   They were uber libertarian and, well, it
   was kinda annoying tbh.