I agree with this, I think it is the least we could do.
I think this "no comment for negative users" feature should be stopped until we get the scoring system sorted out at least, but really, I am extremely disturbed by it, and I think it should be scrapped entirely until it solves an actual problem.
It is grossly unfair to silence people by retroactively changing the scoring system to make their score negative, and then declaring they can't participate because their score is now negative. It's at the very least not what they signed up for, and at the very worst, it can easily lead to political censorship (it already has!).
For example, if a user has a negative accuracy paper, now all that you need to do to shut them up on this site is to upvote the originality on their paper sufficiently, so that their net score is negative.