I think this idea is great and in no way ungratefull.

May be download RATING would be rather called and considered as download FEEDBACK.

in case of a gauge is missing or a cfg is wrong, more likely, the first one who want to be notified is the contributor who uploaded the add on. as well those developper can see from the remarks what are the wishes.

It is up to us to remember that what we download is given for free by contributor working hard to get us the result and make the difference between constructive feedback and useless rant.