This will discourage people from giving a thought out reply, and will not leave room for improvement, or continuation of doing something.
You can still say why you support or dont support and give the reasons but this is mainly for like Suggestions to cut back down on Pages of people writing support. On mod apps you can still give your reasons why you support even if you use the rating. Same with No Support. This rating is not to discourage reply's its just to cut down on a bit of spam
People should give a valid reason for support and no support, so this rating wouldn't wouldn't be very useful, as people will still say "no support /support because...". Imo it won't be very useful.
I see what you mean, but this rating is mainly for suggestions to cut back the pages of support with nothing else written. People can still use the rating and write why the support. Eg Support, Great idea. And they can use the rating. Mod apps i highly recommend you still write why you support and dont support but use the rating aswell.