I worked on one of the non-english Wikipedias for a couple of years, and it kinda worked like that. There were subject-matter experts (often people who had thei

I worked on one of the non-english Wikipedias for a couple of years, and it kinda worked like that. There were subject-matter experts (often people who had their own Wikipedia pages for their scientific work) and their opinions carried (informally) higher weight than those of randos. Wikipedia isn't completely anonymous in the sense that people contributing to a similar area know each other (not personally) and will often defer to a person with clearly higher qualifications. That doesn't mean the system is perfect and there are cases where it doesn't work out well. But it's not really true that on Wikipedia, an opinion of a rando is taken as equal of an established authority in the field.