The wikipedia community has made itself utterly insular and there's way too much protectionism-via-automation.
Make an edit on an article someone thinks is 'theirs' ? Auto reverted via a bot. Complain about it? vote to block.
The constant barrage of Wikipedia-specific jargon and acronyms, all on its own, is enough to turn off most people.
Wikipedia's culture has very much evolved away from everyman's resource to a rarefied and specialized discipline that requires as much specific knowledge as most jobs.