Context:

Permissive licenses (commonly referred to as “removed licenses”) like the MIT license allow others to modify your software and release it under an unfree license. Copyleft licenses (like the Gnu General Public License) mandate that all derivative works remain free.

Andrew Tanenbaum developed MINIX, a modular operating system kernel. Intel went ahead and used it to build Management Engine, arguably one of the most widespread and invasive pieces of malware in the world, without even as much as telling him. There’s nothing Tanenbaum could do, since the MIT license allows this.

Erik Andersen is one of the developers of Busybox, a minimal implementation of that’s suited for embedded systems. Many companies tried to steal his code and distribute it with their unfree products, but since it’s protected under the GPL, Busybox developers were able to sue them and gain some money in the process.

Interestingly enough, Tanenbaum doesn’t seem to mind what intel did. But there are some examples out there of people regretting releasing their work under a permissive license.

  • 𝗧𝗼𝗮𝘀𝘁𝗲𝗿 *𝑣𝑒𝑟𝑦 𝑝𝑢𝑠ℎ𝑒𝑑 𝑑𝑜𝑤𝑛@slrpnk.netEnglish
    3·
    5 months ago

    I’ve actually noticed more GPL-licensed projects give attribution to not only the original author but all contributors.

    Whereas I can’t tell you how many times I’ve worked on proprietary software where the company didn’t give attribution for MIT-licensed code. Unlike GPL’d code, the author has no way of knowing that they weren’t attributed since the code is proprietary.

    I believe GPL does have an attribution requirement btw:

    Notwithstanding any other provision of this License, for material you add to a covered work, you may (if authorized by the copyright holders of that material) supplement the terms of this License with terms:

    a) Disclaiming warranty or limiting liability differently from the terms of sections 15 and 16 of this License; or

    b) Requiring preservation of specified reasonable legal notices or author attributions in that material or in the Appropriate Legal Notices displayed by works containing it;

    • ShortFuse@lemmy.world
      2·
      5 months ago

      There is no section 15 or 16 in GPLv3, but I did find section 7 saying:

      Requiring preservation of specified reasonable legal notices or author attributions in that material or in the Appropriate Legal Notices displayed by works containing it; or

      But that’s an optional thing that you must add onto the GPLv3 license. I’ll have to keep that in mind for the future.

      That would explain why what I’ve read mentioned it’s not guaranteed in GPLv3 (when comparing to MIT). I’ll have to figure out what that notice would look like.