This ban seems to heavily take advantage of the current moment, as it's obvious that he has tweeted worse things in the past. It's strange that they picked such a poor way to justify the ban when they could have made a significantly stronger case, and in doing so could have convinced millions more people that they are trying their best to apply policies evenly. For example, I have a hard time imagining why they chose…
I think the logic isn't that hard. Person says bad things to whip up a mob - Twitter unsure to take him seriously or literally. Mob actually materializes and several people die - Twitter sure they now have to take him literally
I think it's a calculated risk knowing that Biden's win was actually certified so there's now no way this can come back and bite them. I am sure in an alternate universe @PresidentForLife would have been able to tweet indefinitely.
Twitter wants no skin in the game.