Yes definitively. Very often it's just these little things that would improve the understanding.

I read that part many times also and I did not really think that it makes that much difference. It is possible to misunderstand, though.

Is it actively beeing rounded? Because I thought it should be the score times the maximum upvote for the category.

The vote is given in discrete values from 1 to 100 (excluding 0 because that means no vote). I hope I am not mistaken as I do not recall seeing decimals in the votes.

I haven't seen too many of the best of the best anywhere ;)

As I said, if there are not enough of the best, the others are still in the queue. There are going to be new QAs in the questionnaire that should be more suitable for each category.

We can see that lots of contributions get higher score because of questions that do not allow to give lower score, unless the user answers falsely.