I'm pretty sure the previous poster was not referring to the fact a PDS holds all of YOUR data -- mastodon servers do the very same thing.
I think they might've been referring to the fact that ATProto requires the existence of big, central relay/BGS servers, which are forced to index all the data of everyone on the network for the whole "social" aspect to work well.
That requirement makes hosting a complete, independent ATProto stack much more expensive and resource intensive than hosting an ActivityPub server, thus making ATProto harder to like, actually decentralize. (Correct me if I'm wrong, but I think currently the only independent, full-network relay is the corporate Bluesky one?)
To conflate having doubts about ATProto's design with "not liking fun" feels silly to me; it's a much less battle-tested design, doubts are warranted.
I think they might've been referring to the fact that ATProto requires the existence of big, central relay/BGS servers, which are forced to index all the data of everyone on the network for the whole "social" aspect to work well.
That requirement makes hosting a complete, independent ATProto stack much more expensive and resource intensive than hosting an ActivityPub server, thus making ATProto harder to like, actually decentralize. (Correct me if I'm wrong, but I think currently the only independent, full-network relay is the corporate Bluesky one?)
To conflate having doubts about ATProto's design with "not liking fun" feels silly to me; it's a much less battle-tested design, doubts are warranted.