I agree with your points.

However, allow me to explain what I meant.

Because of what Tweeter is doing, people will know see the only negative comments.
This will do nothing to change a person's view. Instead, people will become suspicious and question its authenticity. Why is there so much negative spam?

What will happen is that people will eventually get sick of the negative comments and they will just stop reading the comments altogether. People will just read the tweet, and skip the comments.

In other word, Tweeter has not won. Tweeter has done nothing to change people's mind. In fact, the negativity will just force people to go seek other platforms, while still holding onto their Tweeter. They will maintain two accounts, one for Tweeter and one for the new platform. Eventually though, the new platform will become popular enough that the old platform, Tweeter, is abandoned altogether. Tweeter will have successfully killed itself.

Anything you do against Trump will always backfire. They have not learn this lesson yet.