Notice I put it in quotes. Just because you are not signed up to follow Trump on twitter does not meant that you can’t follow him by reading his posts. The word “follow” existed before Twitter. It has a real meaning. And a whole lot of people follow Trumps twitter comments without being members of twitter.
Correct. And millions of Trump haters respond to his every tweet with hate and vitriol. Those haters will be the first to follow Trump if he moves to Parler. They live to trash Trump. They can't trash Trump on Parler without signing up.
Of course tens of millions of Trump supporters on Twitter will move to Parler as well if Trump moves to Parler. It will be win win for Parler.