Blair P. Houghton said:
Without WikiEN-l people could be "disappeared" by unscrupulous admins.
No, that simply isn't possible. I'm directly contactable by email and I'm
sure most sysops are. Jimmy Wales' email address is on his page; be sure
to put Wikipedia in the subject of your email.
Having said which I've already opined that it's long past time we had a
janitors-l for people to complain about sysop behavior.