I'm thinking of something as light as: this my KGS account or this is my EGF page or similar. I think it should very much be self-regulated by the community but that prospective teachers should identify themselves beyond their forum pseudo-name, even if it's only a KGS account.

Well yes that's a good idea if you are advertising teaching services, but I see no need for rules or admins to care about it. If someone doesn't include useful information in their post they won't get students. People can post a reply "What's your KGS/EGF/AGA/whatever username/rank?". They can answer if they wish. We can have a discussion on a forum. Whoop-de-doo! No red-text from admins stomping about is needed.

P.S. Has anyone ever advertised teaching services on L19 without giving such basic information? Those last 2 examples of Svetlana and the Hungarian chap gave it.

P.P.S Don't ban prices, I don't understand DrStraw on that.

It seems to me that allowing this kind of adverts, even on a dedicated thread or forum, is going to be a big headache for admins, who will have to pay relatively close attention to these things. It might become a place for spammers to post, disguised as go teachers. Are admins going to check every poster for bona fides?

Overkill, IMO. The teachers forum is already a very low-traffic forum, just let teachers post there if they want to offer their services. I reckon our readers are smart enough to recognize advertisements when they see them and make their own decisions on whether to buy.

but Svetlana's thread/post is still locked?

^

I moved the thread into the Teachers Advertisement subforum, unlocked it, and imputed her e-mail address (as an image to prevent spam) and website into her post.