> Its ironic that it is made available on a decentralized platform, since now it cannot be taken down as easily.

The irony is that this example showcases an Achilles Heel of decentralized services — an inability to moderate toxic and/or illegal content — which gives power to everyone who would make all decentralized services illegal.

Question: How does PeerTube handle child pornography?

Actually I think it's quite a good idea if it stays up. It will show him the consequences of what he's preaching. A taste of his own medicine. (I support laws like the right to be forgotten, and I believe decentralisation to be a bad idea because it defeats those laws.)

Moxie's talk is a critique of decentralization, so how is this a "taste of his own medicine"?

that argument depends on the cooperation of the centralized parties in power, whose motivations are not necessarily aligned with (in fact, are usually opposed to) a person's desire to be forgotten.