For archive (Updated on February 26, 2019)
Wiki supposedly uses an easier “Mark up”. A web site using Wiki should allow some access to non-administrators.
Wikipedia is a collection of encyclopedias that are contributed and managed by volunteers.
There are guidelines for Wikipedia, WikiMedia, …
An article for a Wikipedia should have citations (references) but it should be a report for one’s research.
A reader can challenge an article (for correctness, style, structure, conformance, …).
I suggested and/or corrected discrepancies and errors in some Wikipedia articles.