Comment by sangnoir

> Anyone can come in and use those assets.

That's not quite right: trademarks are different to copyright. Most open source licenses grant a copyright licenses, but not the trademark.

Over a decade ago there was a kerfuffle when Mozilla didn't approve of Debian's Firefox patchset and asserted that Debian couldn't use the name "Firefox" for the (still licensed for redistribution) source code Debian had. They had the rights to use, modify and redistribute the Firefox code - but not the name. For a while, the Mozilla browser was known as "IceWeasel" on Debian and Debian variants.