Thanks for the fair response, I agree you're being cheeky. Sorry, I'm being lazy not searching here, but have you written anything on if instances of something is a good measure of decentralisation? (FWIW, I feel independently owned/managed instances in the traditional non-mastodon-definition seems like an okay measure of decentralisation.)

I completely agree with the point in your link that relays are different to instances - I love architectures involving dumb-relay or zero-trust type nodes. But I think Relays should still be mentioned in your post, since they're probably the main architectural element which protect PDS instances from the scale issues heavily federated AP instances might face, right? (I only have a high level understanding of ATProto and very little experience with AP, happy to be told I just need to learn more for this to make sense.)