https://bitcointalksearch.org/topic/new-investigations-board-restrictions-on-posting-personal-information-1576015
1. Personal information must be confined to the new "investigations" board (under Scam Accusations), which is only visible to Members and above. Personal information is defined as anything which links a user's online identity (username, email, etc.) to their meatspace identity, excluding links that the person himself has posted. It is not allowed to post somebody's personal information in any other public place, including in signatures.
2. It is not allowed to post someone's dox if it is especially obvious that you're just using the dox as a weapon. For example, if there are no remotely-plausible trade complaints, then the person can't be a scammer, and their dox should not be posted.
3. As before, anything that the legacy insecure government/banking system requires to be secret is not allowed anywhere. This includes social security numbers, credit card numbers, and certain account numbers.
This applies retroactively to old posts. If a thread contains a lot of personal information strewn throughout it, then the whole thread will be moved to Investigations. If it's only a few posts, then those will be split off. From now on, it's probably a good idea to create two threads for big scammers: one in Scam Accusations and one in Investigations.
From time to time there may be cases where it is very desirable to publish some results of an investigation. For example, if a class action lawsuit is filed, then the person's username should probably at least be publicly linked to the legal case so that other people can join in. For now, there is no uniform policy for this, and if you need to make some personal info public, post in Meta and we will deal with it on a case-by-case basis.
Then some staff member should ban him.