I did log into Messenger (Lite version if that matters) quite recently - while I'm not using site anymore for more than 10 years or so, I do periodically check if people on my friends list want something. So I started scrolling thru contact list to see who's online and at some point some random people started to appear. Some whom I sent once a message, then even totally random ones I never heard about (perhaps some cross-friends pairing happen) and next, some local celebrities that perhaps I'd like to talk to acc. to fb, and some weird profiles pulled out of nowhere.