Rather than add anxiety to a long-expected visit with an old friend for a week, I decided not to do anything in response to this unexpected act on the part of this instance.
Then I returned home and have sat on this issue for a week, because, to be quite honest, I haven't known what to do.
In the years I've posted at Toad Social, I have had I think two previous postings removed. My memory about one of those is clear.