There are just too many different proprietary IM protocols, and they are often fast moving targets. You can't keep up with a team of Google engineers tweaking t

There are just too many different proprietary IM protocols, and they are often fast moving targets. You can't keep up with a team of Google engineers tweaking their protocol every day. Have a look at WhatsApp, there was a bunch of efforts to reverse engineer their protocol, and they ended up non-working, abandoned or C&Ded [0] [0] https://github.com/venomous0x/WhatsAPI/issues/83 https://github.com/venomous0x/WhatsAPI/issues/83