You bring up legitimate concerns, but I think the bigger point here is that the Fediverse is not Reddit, nor should it be. I find that fragmentation mitigates the system manipulation and “gaming” that is often tied to people who rely on exposure.

It’s a little buried in the account settings, but Netflix does allow account sharing for an additional fee (~$7?). I know families that went with this option so they could continue sharing their account with elderly parents, and college aged children.

I imagine that if a group of friends agreed to split the cost of an account + fees, they would end up paying less than having individual accounts.