Do organisations tend to regret bans, especially if they are willing to hold firm for a few days? As Reddit banned all its creepy communities, people had a fit for a few days and made similar proclamations about how Voat would beat them as a result, and then life went on. It didn't destroy Reddit at all. Same with the crackdown on the conspiracy subreddits. Off they went to Voat. But Voat is gone and Reddit remains.…
Is the Twitter example entirely true though? Arguably Twitters actions helped fuel its buyout from an activist billionaire. That's hardly non-consequence.
I see your point though. There are some people willing to take action and if one of those people is the richest in the world, those actions can be quite consequential. But that is one person, not society at large (either the power users of Twitter or the casual users of Twitter). Twitter didn't enter a commercial death spiral for banning Trump.