The public warning system described here was enabled at a time that the forum was extremely busy, to help the moderators when they were hard-pressed to keep up. It has not been used since, and has not become a normal part of how we do things.
It has long been our policy to try to do the hard graft of moderation discretely, by PMs. We have no interest in publicly shaming people. However, this becomes difficult when the posting is as busy, and as touchy, as it has been this week following the comic with Claire's outing her trans-gender status to Marten. It's also hard for both those being warned and other people (especially new members who are not familiar with our procedures) to see that action is being taken - in particular that more than one person in a dispute may be being warned.
At times like this, I believe it will be helpful to use the public warning system that this forum offers, which I have now enabled. When invoked, this has the following effects depending on the level of warning issued:
(1) warnings are visible to all
(2) the warned member's posts may be individually moderated for a day
(3) the warned member may be banned from posting for a day or more, up to four days.
The warning level reduces every 24 hours (counting from that member's most recent warning), and the sanctions reduce automatically as a result - but of course they can be increased again if the member's behaviour doesn't improve.
I expect that in quieter times we will revert to our established more discrete approach (which has indeed happened).