> In what way specifically?

Patreon said disputes had to go through arbitration, and couldn't go through class action law suit.

Patreon removed a creator. That person's patreons all went to arbitration. Patreon declined the arbitration, and went to court to convert all those individual arbitration cases into one big class action.

The court said they couldn't do that, and the reason the court said that was because of the ToS drawn up by Patreon.

So now Patreon has to go to arbitration on thousands of cases, and has to pay the fees. The fees bill is a couple of million dollars.