50% on full servers is ridiculous!
I was on a server full of intel tower destroyers and we could barely keep up
A hard limit 5 or 8 votes should be enough for any griefing, hacking or duchery

Isn't it 25%

Pretty sure is 50%
Otherwise you would need only one vote in a 4 player full server

I'm quite sure it's less than 50%. Because often a griefer gets kicked very fast after shouting out "ALL WRITE /votekick x" even on 32slot-servers. Too fast for 16 people I think.
And the wiki also says it's 25%.

Maybe have a case when team voting out one of there team member counts for more like 1.6?
Otherwise damn my team sucks