There was a local r4r dating subreddit I posted to in 2014, somehow my (now) wife saw it like two or three months later. I titled it “Creepy guy seeks woman way out of his league”, which I am still very proud of as a great title for a personals ad.
A little over a year later we took a look back at that same subreddit and it was 100% hookups, the dating part had been completely phased out except for the subreddit name.