There is more to the service than just the technical. His decimation of the moderation teams is immensely noticeable.
> The fact of the matter is, companies will go where the users are. Once the noise dies down, why wouldn’t you continue spending money on Twitter if your competition is?
When the CEO is spreading outright hate speech, sane people go elsewhere. Brands won't want their image tarnished by looking like they are supporting hate speech.
Right now there isn't a great alternative to Twitter. Mastodon is definitely not it. But once there is, e.g. something like t2.social, my guess is that Twitter will be toast faster than people imagine. I'm sure the hardcore alt-right will hang on, but it will be a shadow of its former self.