Those who play out loud on public transport really are the worst. They intrinsically lack empathy, without a worry or care for others, no concern or thought beyond themselves.
I believe in the transformative power of hip-hop. I do not need this power demonstrated to me via full-volume blasting in public or on a means of transport. Apparently the courtesy of keeping your inspiring music to yourself is not universally known, so I am glad to see it enforced.