On the other hand, the Oxford English Dictionary relies on ordinary people to spot first-uses and derivations of words.
A subject-matter expert is still an ordinary person as well. I imagine that any one of us could write a reasonable page about storage performance, for example. When I visited, I went to a "random" page, and read about inline engines. This may be a bit of a jump, but I have to think that someone who cares enough to write seven paragraphs about inline engines probably knows quite a lot about them.