That's just the old "success forgives everything" argument. It's a tempting argument, but that's also the primary mechanism by which success leads to failure. Wikipedia works, and is completely usable, by committed and dedicated nerds. Maybe even the dumb ones that work at the gas station.

Yeah, this guy was probably wrong, and this particular subject probably isn't notable. Wikipedia still could have given this guy a better experience in the process of figuring this out, and writing this guy off as worthless and not worth listening to is just arrogant and unproductive.