[meekmockmook]

Twitter didn't actively moderate the President, who broke every single policy in their rulebook, until he lost power. An argument could easily be made that they selectively enforce from that alone, but I don't see Parler's lawyers using that argument lol

[duskwuff]

It isn't a valid argument. AWS is under no obligation to treat all of their customers equally.

[kube-system]

I don't think that argument would be useful. The terms of the contract between Parler and AWS are not modified by the interactions AWS has with other customers.