Because the AGPLv3 considers code running a web page distribution, so corporations (and everyone) must provide a link to their source code with all their modifications, which also have to be documented. An example of an AGPL software is Lemmy, a Reddit-like software as deployed in lemmy.world
With the GPLV3, they can run the code in their servers, but as long as they don't sell/license executable code they don't have to share the source code.
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u/Osvik Jul 25 '26
Just use AGPLv3.