I believe their feedback mechanisms are placebo, pacifiers for loud people. Microsoft pesters you to give feedback and works hard to ignore them. And then goes ahead with what they initially planned. At the end, they'll announce - "We had delivered what you wanted. Based on feedback..."

And then you start wondering if you're in the minority and other people are simply crazy until you see multiple complaints about the same things.

Their music app, Windows phone, Windows 10, Skype and Edge are where I experienced this. In all cases, user experience kept getting worse with each "IMPROVEMENT."

The only time Microsoft listens is when people ignore official feedback channels and there are massive outcries on many fronts. Even then, Microsoft often retreats only temporary.