I don't think the upvote/downvote system has merit in accuracy of information. It's just what is popular with the hive-mind. My time with Reddit has shown me people barely click through links, let alone able to discern what is factually correct. I've seen Redditors upvote things that are in my domain of expertise that were just flat out wrong. Also, Reddit is federated by moderators of individual subs, so it's not that different than what we have here.

But site reliability is certainly something Reddit has over the Fediverse. It may not be as resilient, but just like all major platforms, having a single master of information like Reddit invites enshitification.

You don't have to scare Spez, you have to scare advertisers and investors. If the blackout were announced to be indefinitely, I imagine it would certainly cause people to act. Of course that would mean more people stick to Reddit if they reduce their unreasonable pricing.