When I requested a feature here on this site, I got down-voted because the voters didn't like the request, and didn't think it was right. I don't think this is the appropriate behavior, and I will probably get down-voted on this to, but anyways, the tooltip says you must down-vote when the question is unclear, not useful, or does not show any research. I know you would say that a feature request that people don't like is not useful, but a not useful question is a duplicate, or is not answerable.
Rather make a feature voting for questions tagged as feature request.
If down-voting on this site is so different, why does it affect your reputation when you only made an innocent feature request?
I don't care about reputation; I care about the features that open with reputation. Because you make a "bad" suggestion does not mean that you are not allowed to down-vote and up-vote or chat.