Update 20 Oct: This was followed by several emails about my “friend Steve”. That is a very common English first name. John and Dave are other examples.
Here is part of one:

(This strikes me as largely nonsense, btw. This particular person isn’t really a friend and not someone who would worry about me. He doesn’t care. It’s someone I last saw in 1996.)
Here’s another one:

Someone in the US just wrote to me: “I receive several emails regarding you from a friend of yours with access to your email — which is how he found me. That correspondence was brief and has been over for months, but wierd to say the least.”

I’ve asked for this person’s name and to forward me a few of those emails.
I have three names for these hackers now, and two of them are women. One of them is Portsmouth-based and among other things paid for my website for a year.
The other one of the women who contacted me said she was a hacker but I don’t believe her because when she popped up on Telegram, she quickly hid herself but she still popped up on Signal as well and when I sent her angry texts as I have her phone number, one of her responses was really stupid and contradicted what she wrote earlier, basically admitting that she had a reason to be among the “contacts” on my phone. So if she really IS a hacker, she is not a smart one. She speaks Dutch and American English, once arranged to meet with me at a Dutch public library but I found her sitting next to me at a very different public library branch (and drawing attention to herself) months later.