Public voting, or at least semi public-voting helps cultivate a high-trust culture on-site in my opinion. And being able to remove repeat offending downvoters who do it nonetheless is very useful.
I managed to discover the serial downvoters on my old lemm.ee comm and when I banned them (about 4 of them?) it had a huge impact. They didn’t all downvote /everything/ but they downvoted a lot of things, and no contribution. And if they got in early, they could sink new threads. As that kind of behaviour now is more-or-less confined to non-interacting support/troll accounts, it’s much rarer of a problem. Unlike Reddit when a lot of threads can quickly get downvote buried instantly for seemingly no reason.
I suppose it depends on the purpose of the community. Narrowly defined communities like eeveelutions or The Addams Family don’t really justify a glut of content in an hour.
OP seems to run a news community though, which is probably where they ran into a brick wall with the 5 post limit. There’s a lot of news. And I guess you’re not a very useful news community if you miss a lot of it.