[MetalMASK]

FWIW, wechat's messaging server is in erlang. In terms of scale, it's probably bigger than whatsapp.

[mcqueenjordan]

The opposite is true by a non trivial margin. (It doesn’t change the fact that WeChat is massive scale.)

https://www.statista.com/statistics/258749/most-popular-glob...

[mappu]

The Discord number is inflated - 250mm is registered users, not MAUs. When they announced 250mm registered, they had 56mm MAUs.

Telegram's 200mm is MAUs, and that number is over 1 year older than Discord's information.

[erk__]

Then the question comes if wechat and qq uses the same backend as they are owned by the same company.

[tulunsutao]

No, wechat's infra is most in C++[0], e.g phx*[1]

[0] https://github.com/Tencent?q=wechat

[1] https://github.com/Tencent?q=phx

[yashap]

WhatsApp’s servers are largely written in Erlang too, right?

[fock]

they were ejabberd when they started up ;)

[kgc]

Interesting. Source?