Wiktator 

A power-abusing asshole Wikipedia admin (or high-ranking user) who won't let you write anything at all.

We live in a Wiktatorship.

Wiktator by Bbb23’s left testicle January 10, 2024

wikitator 

n. A Wikipedia account holder who uses acquired privileges to exert dictatorial powers over contributors. Wikitators frequently throw away factual contributions from subject matter experts that the wikitator is personally ignorant about, using their account privileges to enforce their will.

I corrected a mistake in the Wikipedia entry for where I live but some wikitator threw out my work and then banned me when I tried to fix it again.

wikitator by Mel White January 28, 2017

wiktatorship 

a wiki that porports to be a dictionary that anyone can edit, but if someone tries, his edit will be promptly reverted by a wiki editor.
This makes the wiki editor feel good about himself.

Wikipedia used to be a good site, but now it's a wiktatorship.

wiktatorship by ADHDfidget May 3, 2017