Just curious, why is there a required privilege (especially one as high as 1000) to view vote counts for a post? It's not like someone can mess up a post by just viewing the vote counts. Is it just to give people incentive to reach 1000?
This is because it's "expensive" to view the vote count (in terms of running the query). The rep threshold limits the number of people requesting this data.
As of June 2022, users with 100 reputation can view vote counts here on Meta Stack Exchange, however the established user privilege itself still awarded at 1000 reputation.