Wikipedia, in my opinion, fails in that there is a bias with anything that remotely involves politics or health science. Students need to be taught that Wikipedia is NOT an objective source, and that basically no source of information is truly objective.
https://en.wikipedia.org/wiki/Unidentified_flying_object
If you read that, you will walk away thinking aliens have not visited this planet. Probably definitively believe it. The reality is, we have no fing clue if they have or not. You can feel the skeptics just edit all day long denying anything.
I'm sure by 2050 the article on god's existence will be less discussion on both sides and just say that people that believe are crazy.
If anything remotely falls under "pseudoscience" even if there is science backing parts of it up, wikipedia just completely bombs the crap out of believers.
It's not a primary source, or a secondary source, but it's a great tertiary source for getting an overview of an area, and as a tertiary source (like other encyclopedias historically) it has a major role in academic work.