Illegal behavior is illegal behavior, and if someone's behavior reaches that level, it should be taken up with the police against the perpetrator.
So, conversely, if we don't want to live in that world, it is appropriate and beneficial for private institutions to have some standards of acceptable behavior beyond mere legality.
Alternatively, you could recognize that there is no right to not be offended.
There are ~7 billion other people out there, a solid majority of whom likely hold one or more views that you would find offensive (and who find one or more of your views offensive in turn).
I feel like this is a bit of a strawman. Github didn't say they would take action against anything that might offend anyone. They were pretty specific: no death threats, impersonating other users, etc.
Besides, the best you can do is take action after the fact, not avoid being subjected to it, unless you cut yourself off or have weird vetting barriers between you and others, instead of an open communication platform.
That statement seems to imply that there is a mandate for 3rd parties to provide systems free of "undesirable behavior" from particular perspectives. Freedom of association means no, there isn't. Demanding private institutions provide freedom from offensiveness implies a perceived right not to be offended.
eli's right, somebody should suggest adding "community guidelines" to this "offensive" blacklist and see how they resolve the paradox ;)
Because I did not deem myself offensive.
Then they came for me—
and there was no one left to speak for me.