In a recent comment I compiled the following examples of Github engaging in SJWism:
Github forced developers to remove the word "retard" from their comments or have all their code deleted within 24 hours: https://news.ycombinator.com/item?id=9966118
Github deleted and banned the members of "C Plus Equality," a satirical programming language written for feminists: https://tech.slashdot.org/story/13/12/14/1618239/github-takes-down-satirical-c-plus-equality-language (BitBucket censored it too) (Here's a fork that's still under the radar)
GitHub's official Code of Conduct (that everyone has to agree to) says there's no such thing as "reverse-semism," "reverse-racism," and "cisphobia" and that they won't act on complaints regarding those, nor will they stop anyone from "criticizing racist, sexist, cisseist, or otherwise oppressive behavior or assumptions." https://github.com/dear-github/dear-github/issues/107
They've hired actual racists (or "reverse-racists" as they'd call them) and have internal presentations like this: https://i.imgur.com/TM5Dofg.png (Nicole Sanchez, Berkeley professor, hired as "VP of Social Impact")
They've hired completely pointless "coding grrrls" like Coraline Ada Ehmke, a reprehensible human being and the furthest thing from the developer she claims to be:
Humorously Ehmke attacked Github because she wasn't satisfied with the turnaround time of their censorship/anti-harassment support tickets:
At first I had my doubts. I was well aware of GitHub's very problematic past, from its promotion of meritocracy in place of a management system to the horrible treatment and abuse of its female employees and other people from diverse backgrounds. I myself had experienced harassment on GitHub. As an example, a couple of years ago someone created a dozen repositories with racist names and added me to the repos, so my GitHub profile had racial slurs on it until their support team got around to shutting them down a few days after I reported the incident. I didn't get the sense that the company really cared about harassment.
Ehmke also led a very disruptive attack on the Ruby community to try and force them to adopt a SJW-esque code of conduct: https://redmine.ruby-lang.org/issues/12004 (Reddit post about it: https://www.reddit.com/r/KotakuInAction/comments/42ekqk/industry_the_ruby_programming_language_community/) and got installed as a "Diversity and Inclusion Chair" at a machine learning conference (https://www.reddit.com/r/KotakuInAction/comments/7kroqx/sjws_begin_infestation_of_the_machine_learning/)
Prior to being hired she also would launch campaigns to get contributors banned from projects for their off-site, unrelated activity: https://github.com/opal/opal/issues/941. Remember, this is the woman who Sanchez hired
If anyone has more post them and we can compile an educational list.