[nbrycnb]

Yes, the lesson is not to contribute anything of value to open source or another person's platform.

Creators need to use restrictive licenses, then all of these parasitical corporations will cease to exist.

[muxator]

Limiting the scope to software, I'd say it's fair to distinguish MIT licenses from GPL. The latter provides way more freedom for the user (as opposed to corporations willing to profit without giving back). I am fair more comfortable contributing to an AGPLv3 software as opposed to a MIT licensed one.

I can't talk about licensing for content creators (like youtube), because I do not have much experience about it.