China already has a ton of these. The earliest that I could recall seeing from that particular market would be Bixin, which as far as I know is still operational.

I personally think that the concept of social payments is extremely intriguing, especially when you consider what WeChat has done with their payment platform, essentially forming a duopoly with Alipay within the Chinese payment remittance market.

However, I'm still not entirely sold on this concept of messenger/social payments being used in BTC. It's a very niche market, and on top of that, as a user you'd always have to be concerned regarding the security of your funds; since using these services will always result in a lack of control over your own Privkeys.