Wiki supposedly uses an easier “Mark up” than HTML (Hyper Text Mark Up).
A web site using Wiki usually allows some access to non-administrators.
Wikipedia is a collection of encyclopedias (in multiple languages) that are contributed and managed by volunteers.
There are guidelines for Wiki publications such as Wikipedia and WikiMedia.
For example, 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, and conformance.
I suggested and/or corrected discrepancies and errors in some Wikipedia articles.