While I appreciate the advice on how to hide email addresses from internet spiders, the reason for not posting email addresses on FT threads is for privacy from humans as much as from machines. So I guess I'll have to find hutongs without your map as a guide, alas.

I am comfortable in accepting that FT's PM and email mechanisms, along with "ignore user" if necessary, will preserve my privacy. I am not nearly as famous and in-demand as you are, so have never had the problem of being blizzarded with weird PMs and emails from the members of FT.