tfw the poster has no idea what they are talking about.
Discord's Engineering is rough. (1/2)🧵
The backend has switched from MongoDB, to Cassandra, and now...Scylla?
Discord has around ~150 Million Monthly Active Users (MAU).
Facebook used plain PHP and MySQL as their engine until 2010, when they had already reached 450+ Million MAU.
Facebook in 2010 had advanced search queries, a complex social graph, as well as a full system of games.
Discord has...a slightly polished up IRC experience?