Actually Microsoft pretty much nailed it with Windows 10. The OS has a built in app for feedback (at least one I encountered in the mail app). Your feedback shows up in a global feed for that category (mail in my case) and other people can upvote it if they agree with it. There are also comments that other people can leave.
And if I remember correctly, it also notified me that the feedback has been received. What's even more awesome, although probably a coincidence, literally the next day the app had the feature I requested!
This ticks pretty much all the boxes for me when it comes to giving feedback.