This feels like the mostly likely scenario, quickly change your image by hiring a bunch of 'diverse' people and soak up the PR, then quietly let them go over the next few years if they don't conform.

That'll work for a year or so. The problem is that they will write about it afterwards (like this), and then you're reputation (in this area) is even worse, because now people won't be believe you.

> Their interpretation was that github is upset they are viewed as sexist, so they want to figure out how to change their public reputation, without actually changing anything.

Good ol' Diversity Theatre :/

Hire more SJWs with a history of publicly calling out their employers, what could possibly go wrong?