I don’t see why not? It’s a (worrying) emergent tech/social phenomenon.
Things like this have existed before, of course, but this is probably the most mainstream effort; previously they were confined to things like Replika, which people would have to seek out, not being promoted as a first party feature in a major social network.
Xai recently announced the $10 billion investment round. They've been criticized for lack of a safety culture. They have a very high burn rate so that investor money is going to evaporate quickly. Spending it on AI waifu seems relevant.
Things like this have existed before, of course, but this is probably the most mainstream effort; previously they were confined to things like Replika, which people would have to seek out, not being promoted as a first party feature in a major social network.