I do not think a company owes you anything with regards to feedback. Why do you think you or the community deserve feedback?
If you get rejected you were simply not the right fit.
If you get rejected you were simply not the right fit.
Much for the same reason, competent HR professionals appreciate if you give them a reason for leaving a recruitment process or a job, it helps them identify areas of improvement.
I interviewed for a jr dev position and was not asked one technical question. I am sure that the reason why I didn't get an offer was because I did not wear socks. Seriously. I made sure I always wore socks after that.