[buildbot]

I’m personally pretty confused how a private company can effectively fine people?

[inigyou]

They have your money and they're poorly regulated. They can just remove it from your account.

[theamk]

Why not? College parking fines is a good example - they can write any parking rules they want (it's their property), and they can print tickets and place it on people's windshields. They cannot put driver in jail or block their registration, but they can prevent someone from graduating or even install wheel clamps on someone's car, as long as that car is on the private property and the driver was warned.