"games" may be a bad example for my case. For more specific thematics (I personally follow SonyHeadphones, SwitchPirates and VitaHacks for instance), the more central information is, the best chance people don't miss out on stuff and stay up to date, precisely, calling it "FOMO" is exactly that. on the other hand "that's just the fomo talking" implies it's a bad thing. That is up to each user to decide.
Aynway, the current state of the "federation" paradigm is imho pretty limited. It's even less curatable than RSS was back in the days. At the very least there should be a user defined way to create personal "portfolios" of arbitrary magazines. That would be the easiest way to somewhat allow users to consolidate clones across various instances.