To put it on even footing with the current Parler scenario, add this one:
5) Hire a mob and storm the capital of the United States in an act of sedition, linking the planning and encouraging of the attack to your competitor's platform.
Or,
6) Hire a mob and storm the Federal Courthouse building in Portland?
I don't blame Twitter, the company for what happened in Portland this summer, which is sort of the entire point of Section 230 protections. I don't like Twitter or Parler or Gab or Facebook for what they've done to civil discourse, but that doesn't mean I think any of them should get their hosting yanked for it.
In fact, it will almost certainly make things worse. All of the attacks on 4chan and 8chan over the years only served to make them more popular - it's like people have amnesia about the Streisand effect.
5) Hire a mob and storm the capital of the United States in an act of sedition, linking the planning and encouraging of the attack to your competitor's platform.