Kawaii Kiyori

I've been playing second life almost 11 years and have NEVER seen this until recently. So, sorry if I really don't think it's a coincidence or random bots.

The same thing is happening to me! It's not like I'm wandering and coming across these said accounts. Any land I live on or visit they pop up. I have made it a thing to Note in their account where and when I seen them. I can understand if all the regions were owned by the same company then would consider them being business alts but, that is not the case. They follow me EVERY where. I can see a regular avatar once while out shopping and never see that account again my whole entire SL. Yet, I keep seeing the same 6 accounts pop in and out ever land I visit?