WELL members use a consistent login name when posting messages, and a non-fixed pseudonym field alongside it. The pseudonym (or pseud in WELL parlance) defaults to the user's real name, but can be changed at will and so often reflects a quotation from another user, or is an in-joke, or may be left blank. The user's real name can be easily looked-up using their login name. WELL members are not anonymous.
There is a time-honored double meaning to the WELL slogan coined by Stewart Brand, "You Own Your Own Words" or ("YOYOW"): members have both the rights to their posted words and responsibility for those words, too. (Members can also delete their posts at any time, but a placeholder indicates the former location and author of an erased or scribbled post, as well as who scribbled it.)
http://www.well.com/
http://en.wikipedia.org/wiki/The_WELL