47,000 Wikipedia Edits Made By One Man

This guy made 47,000 Wikipedia edits to fix one error...over and over and over.
Henderson has made more than 47,000 edits to Wikipedia correcting a single grammatical error, when writers use 'comprised of' instead of 'consists of'. That particular error irritates Henderson so much that he spends an hour a week fixing it on the online encyclopedia – and has done since 2007.