[VladRussian]

>It's disturbing to see that this is an all-too-common pattern with the large internet companies. Stories abound of companies like Google, eBay, PayPal, Facebook and Amazon closing down accounts with what I would characterize as "violence". No explanations. No recourse. No way to reason with a human being. The approach seems so "anti-internet" that it is hard to come-up with justification for the behavior.

it is doesn't matter internet or B&M as [quasi]monopoly is a monopoly. Just imagine how it would feel if your electric/gas company decided to "close your account forever". Because of such great power they weild, they are regulated as public utilities. The platforms you mentioned are formally not yet there [mostly i think because the standard metric of what monopoly on the Internet is hasn't been yet determined], so they allow themselves all kind of behavior that is no-no in the other well established areas of business.