Iām sure that the people making this kind of argument would be quite pissed indeed if I trained an LLM on their proprietary code and used it for my commercial projects.
US Supreme Court has yet to make any explicit ruling though. It The EU top court (CJEU) is currently hearing arguments. I guess we will know in 2027-28 globally.
No, you are describing a SPECIFIC License called the The Unlicense: https://opensource.org/license/unlicense
This is ONLY ONE such OSS license and does not apply to all OSS.