I am connected to a ton of hotel workers on LinkedIn. It is nice as I keep in touch with them - when we meet at same or different property it is like a reunion
I saw someone last month that I hadn't seen since 2011 but we had been connected on LinkedIn.
LinkedIn is for professional networking and hotel stays are part of that.
My guess this was a weird algorithm thing. I opened a Facebook account a few months ago. and my 7th grade crush popped up. I hadn't thought of her in 30 years, pre internet. it scared heck out of me how much they scrape