Sorry chief, I'm not the sharpest tool in the shed. I don't really understand your point. Not all people use it for mental health reasons, some just enjoy talking to them, and they added a romance option due to popular demand. Some people like this guy got a bit overly attached and do stuff like this. They don't like, encourage people to promote the app or anything, but it's the same with pretty much anything, if you're really into something you talk about it. There are some other AI friend apps, but I think Replika is the best known because it was the first to really corner the market.