It would be the death of this side of the federated internet. The amount of content it would generate once federated would crush existing servers. You would have to defederate or face near instant storage shortages. The federated que would take years to sync.
Anyway, it wouldn’t happen because they would need to transmit real vote counts instead of fuzzy vote counts. You would be able to see how every single person on reddit voted. Which would simply expose the vote manipulation going on there.