In the training, to move beyond being an asshole one must admit being an asshole.
The Playground was intended for "off-topic posts." That was quickly translated to "anything goes." Except spam, of course, everyone admits that spam should be nuked. Even spammers don't argue with that.
So the Forum ends up hosting libel. Way to go, guys. As to doxxing, that originally referred to providing real-life information for accounts intended to be anonymous, and anonymous accounts were not called "socks" unless there was more than one participating in some discussion (i.e, pretending independent support that was only "puppet theater.") . Detecting and banning true socks involved a level of invasion of privacy, but this was considered necessary. That is, by pretending to be more than one person, one abandoned the right of privacy. Mary Yugo did this long ago, and Rossi has done it frequently. Real names were generally still protected (on WMF wikis), unless one of the multiple accounts was real-name.
I allow doxxing on coldfusioncommunity, for now, until there is a community process to review administrative actions and decisions. The obvious may be mentioned. However, user IP information, visible to me as admin, will not be revealed except in one case: clearly abusive posting (such as impersonation, which has happened), not mere expression of unpopular opinion, will not be protected, because sharing that information will assist other admins on other sites to identify trolls. which may shift admin response. As well, a trolling target deserves to know more about who is attacking. Trolls will not be automatically banned, but encouraged to participate in genuine conversation; continued trolling behavior will be sanctioned, after clear and violated warning.
Because nobody is being actually banned, it is not necessary to dig deeper than IP into user agent string, which is visible to those with root server access, and which tends to identify the specific computer being used.
People should be aware, though, that anyone can get a subpoena for server records, with that identifying information. To avoid this could require using an open proxy, which then, on some sites, will be banned.Most abusive socks don't bother; however, the situation for socks gets tougher when real-life identities are revealed, i.e., doxxing may be needed to protect the community.
Behind the scenes, I was informed that the reason my ban became permanent was that I revealed the identify of a user. However, that identity was blatantly revealed by LF history, was obvious, and was obvious in that way because of the user's behavior, the hiding of identity was thoroughly clumsy, and remains so. The user himself doesn't seem to be bothered, and has never requested that I remove such information (which would be considered, and which request should be private, for obvious reasons.) Remember, I was a WMF administrator, very active, both as an admin and in reviewing admin behavior. I dealt with socks and doxxing, extensively.