I'd estimate that about 1/8 to 1/4 of the purpose of the laws he's breaking is to protect commuters from harassment and the remainder is to protect the profits of businesses like the kiosks that sell candy, drinks, and newspapers on some of the platforms. Basically, I find those laws to be more of a bug than a feature.
I disagree. Based upon other commenters' experience with this exact fellow, he often turns abusive to people who don't want to buy what he's offering.
When it comes to public transit, strict limitations are really nice for the masses. Riding trains in Japan, where nobody chats on their cellphone next to you, buskers don't assault your ears, and vendors are limited, efficient, and polite, is a wonderful thing.
