Have you tried a simple edit of an article? It'll get reverted under a reference to some policy that links to some giant body of in-group norms for Wiki.
Yes, my math and CS edits on Wikipedia tend to be durable, sometimes more durable than I'd like as I would've wanted a professional in the field to take over. It took me a few hours over the course of a week to appreciate the collection of pros and cons which keeps technical Wikipedia to be what it is.