I was reading privileges on this page and I learned that you can see vote counts and expanded usercard at 1000 reputation points.
Why it's so expensive to obtain this privilege ?
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3Note that while you don't have this privilege you could use this userscript to view them– angussidneyMar 17, 2016 at 6:14
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2 Answers
According to Meta.SE:
because it's "expensive" to view the vote count (in terms of running the query)
That is, with a vote table as massive as StackExchange's, allowing all users to make requests to view vote totals would put too much stress on the system. The rep requirement decreases this stress.
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that's odd you would have thought that the query could execute once and then the result could be cached until it changes– user126536Oct 20, 2016 at 17:04
Because the system works that way, system-wide, across all SE sites. For better or worse.
answered Mar 17, 2016 at 4:55
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Should my question include what you just said ? " Why it's so expensive to obtain this privilege, system-wide, across all SE sites ? "– GalabycaMar 17, 2016 at 5:22