No, because I'm not affiliated with any messaging applications. Nor, by the way, am I saying that the author is --- I don't know them. I'm saying it's a good thing to know about the conversation.

Rereading my post here, I can see why a reader would infer from it the idea that the author might be a sockpuppet. I don't believe that! I was thinking more about the kinds of comments on message boards that say Signal is a "honey pot". I could have written that more carefully, so, sorry about that.