Also the fact that its written in Ruby on Rails probably doesn’t make it easier, performance wise.

Honestly. They’re already performing miracles with RoR.

How many non Ruby apps and all the databases and systems behind could climb their traffic 14x when they probably only perf-tested for a sustained 2-3x and, and paid for a profitable amount of rack space rather than a “lol, VC money, we’ll 10x later” amount of infra.