Korean language. I got involved after the course had already been created by other volunteers. I was an admin for the part of the platform where people would be asking Korean grammar and vocab questions when their answers got marked wrong.

Wow, they sourced a course from you before?  On physics, or korean language?

A Duolingo contributor hoodie sounds sweet, I'd definitely show that off if I had one.

SimpleStacker

Look up Duolingo Incubator. That's how it was called. It was a revolutionary way to grow big at small cost. His captcha experience in crowdsourcing inspired him.

Nice, didn’t know about their early course sourcing efforts

tech

The Duolingo Handbook

I'm with you on that one. They are for sure not a gimmick.

I got my "severance" package a few years back when they moved away from the community based approach to source their courses. Now they hire linguists to make the courses. It's gotten very professional.

Still wearing the hoodie they gave me as a thank you for my efforts~~