Their link to why you shouldn't use GitHub[0] takes you to a page where they criticize GitHub for complying with US export controls. The FSF is a US corporation, why do they think that US export controls don't equally apply to savannah.gnu.org? And unlike FSF, GitHub has actually done the work of applying for export licenses so that developers in US-sanctioned countries can access GitHub[1].
there is a different and more important criticism listed too, githus is nonfree.
But, github could easily establish a non-us entity to host export restricted code. And for savannah, if anyone had any code they were worried about export control for their code, savannah would quickly and easily have an independent person host that repo outside the US.
> You agree that any and all content.. that you provide to the public Network... is perpetually and irrevocably licensed to Stack Overflow on a worldwide, royalty-free, non-exclusive basis pursuant to Creative Commons licensing terms (CC BY-SA 4.0)
Technically a lot of people who copy from Stack Overflow are breaking CC BY-SA 4.0 since it requires attribution AND requires distributing code that uses it under the same license ( I think - I am not your lawyer) :
But, github could easily establish a non-us entity to host export restricted code. And for savannah, if anyone had any code they were worried about export control for their code, savannah would quickly and easily have an independent person host that repo outside the US.