I'm not sure I would rewrite the comment. This doesn't help the person who created it. What I would do, is reject the comment, advise them as to why I rejected their comment and move on.

However, I have edited comments where there have been spelling mistakes but I don't re-edit the comment whether it is for or against what I'm saying. After all, my opinion on a post I write may not be the same as everyone's.

Best wishes to you.

What a c r . . y idea Caio! ... if I'm going to edit comments to my liking, why don't I write my OWN comments AND write lots of them! ... comments are an important social skill to learn ... when I first started commenting I was disapproved a few times and reasons were given on ways to improve my comments. Skills are learned through study and practice ... Why lose the opportunity?

I did that before and it took a lot of my time - so I think some people just don't want to waste their time especially if there's a lot to edit :)

Any useful comment is good for ranking. I would approve an "X" and edit it for all I care.

I don't mind if people change mine to suit their needs. As long as it is kept civil, no harm done.

Let's exaggerate it a bit:

My website is about coffee. The guy comments about bananas.

Disapproving would be a waste. I'd edit it (and insert keywords and links) to suit my website.

If one doesn't want to be content-edited, make an effort to content-comment accordingly.

I never feel I need to content-edit or disapprove a good content-comment.

By the way, I always send the person a message when I see the person is somehow misguided and may need help.

To me that takes away the point of having a comment. For sure, I would edit bad grammar or a typo, but certainly not change the content.

This is a very good question, and is something I used to do. The reason I decided to disapprove comments is to try to teach them a lesson.

But it's a good point, if someone gives you a badly written comment, you may as well just use it as an opportunity to create the kind of comment you want. I might start doing that again.