I can’t explain, no, because I don’t understand the motivation behind it.
But someone (likely a bot) has been spamming messages, allegedly from the person depicted, as “the Fediverse chick.” I got my first one this morning. It arrived within sixty seconds of me making a post, so I have to guess it’s targeting more active users. If you’re a frequent commenter, you’ll probably get one eventually, too.
Who isn’t?