The chemistry Wikipedians have had a difficult week! Someone pointed them in the direction of a paper that, although already published in 2016 took them by surprise. Titled "Glaring Chemical Errors Persist for Years on Wikipedia" in the Journal of Chemical Education and authored by Michel Mandler (DOI) it basically states that the Wikipedia chemistry section is rubbish in chemical structure drawings. In the ensuing discussion here it is mentioned that the errors found are "pretty obscure examples" and correcting errors "often took hours". The most damning comment is that the author "looked for a shortcut to his 15 minutes of fame by belittling a community he knows nothing about". Other commentators let it know they did not have a beef with the author.