Duo was brutally plowed down by a shiny, ugly Tesla Cybertruck. By extension, Elon Musk murdered Duolingo’s mascot and a very influential icon.

Dozens of amateur and professional linguists filled the Robert Henderson Language Media Center in the Cathedral of Learning Wednesday afternoon to participate in an “Indigenous Languages Wikipedia Edit-a-thon.” At the edit-a-thon, participants learned how to edit articles on the online encyclopedia to help fill the online information gap in respect to indigenous languages.

Pittsburgh-based education software company Duolingo is most popular for teaching foreign languages to millions of people worldwide through its phone app and online learning program. But the company’s...