Why would you give away your production value to a capitalist for free?

It's literally the only power you hold in the labour market, and it's your own fault if you give it away for nothing.

Just vote with your dollar, unethical companies always lose market competition ☝️🤓

Just use anki.

is there a non-shitty alternative to use that anyone could recommend? would be really interested.

DuoLingo imo is kinda crappy anyway. Boring, repetitive, and terrible at teaching listening comprehension.

I can give it credit for getting people interested in language learning in an approachable way, but that's about it.

I should have that pikachu face meme handy.

This is why agpl exists

I mean this is by the guy who brought us CAPTCHA, are we all that surprised? Same playbook, just a different play. Skim some labor off the top.