That is not free, that is stealing. It's like going to a grocery store and calling it a hack that you can walk around the registers and leave without paying.
True. So sad to think that hackers are exploiting - and yes, there can be no doubt, this is EXPLOITATION - weaknesses in coin-operated services. I weep to think how far has this once-noble vocation has strayed from its roots ...
John Draper and his fellow hackers were EXPLOITING coin-operated payphones and switchboards in the 60s, so I'm not sure how far back you have to go to reach the noble vocation you describe.