IMHO, Github is for, well Git repos, so I would understand of the behaviour described resulted in a ban on commenting in other people's Github but a blanket ban

IMHO, Github is for, well Git repos, so I would understand of the behaviour described resulted in a ban on commenting in other people's Github but a blanket ban seems very heavy-handed. On the other hand, maybe Github has enough on its plate not to bother trying and they just blanket ban on a significant enough red flag.