Tons of cited links are utter bunk, just in ways that don’t blatantly violate Wikipedia’s guidelines. So many references to slop (in the pre-AI sense) books written by people with no real subject matter authority. Actually looking at the sources section makes it a lot more apparent how flawed Wikipedia is for anything that is not cut and dry.
More websites should archive their linked content. Great practice in general.
I think this person is referring to the captcha