[dragonwriter]

> When the GPL was first released, its requirement that all linked modules be GPL-licensed wasn't so different from what the SSPL enforces today at the network level

The “all linked modules” thing does not appear in the text of the GPL as first released or any subsequent version (it is in some versions of the GPL FAQ, but arguably is contradictory to the text of the corresponding license in view of copyright law.)

But that at least was tied to a (even if actually wrong) remotely defensible as good faith interpretation of the boundary of a single work under copyright, and not an attempt to impose licensing terms on unrelated works that merely happened to be used together. And, also, was restricted to a document that purported to interpret the license in th context of the law, even if it arguably did so incorrectly, and not part of the license itself.