I got an editor from hell once who insisted a particular band played certain instruments, he was confused with digital sounds added later on. The band members themselves only use their voices, as is traditional in their region dating back many centuries. The bands website says this on page one yet the editor went on a power trip with me about his knowledge of my favorite band and he deleted my update and later my notes and insisted they all played different instruments. He took my request that he at least visit their website as an insult.
I'd say the site has issues to deal with on many levels. I'm apparently no longer part of that "anybody" crowd yet that's just fine with me. Wikipedia looks silly for having it wrong, still, and it seems nobody can correct it for them.