I agree!
Usually, when a worker wants to contact HR it's regarding something negative, but the HR is hired by the company you want to complain about so it doesn't make sense to me to bite the hand that feeds you.

That being said, I went to HR recently and it worked for me,but it was because "pleasing" me was in the best interest of the company - it had little to do with me and I knew that.

(The issue was under staffing. I was working solo in a 2 person unit and apart from being stressful for me it was also a violation of the contract. Once HR learned of this they pounced. They didn't want another person to quit nor did they want their client to think badly of them for not living up to the agreement. I'd put the bug in customers ears that the reason I was "slow" or something wasn't ready, ordered, whatever was because it was just me. I encouraged them to complain about the under staffing, .

Things have calmed down now, but I'd refrain from using HR as much as possible. You're better off to get in good with someone important.