When the free software movement started to make headway, proprietary software companies like Microsoft went to war against it, describing the licenses at its core (like the GPL) as "viral licenses" to scare companies off from using free software.
The GPL is a software license that coders add to their work that says, "You can do anything with this - change it, sell it, copy it, incorporate it into something else, BUT...you have to redistribute the new projects under the same terms."
In other words, we are making a software commons - code that anyone can use and improve, but only if they agree to maintain the commons. Like any shared resource, commons need protection from freeloaders who take but do not replenish.
When Microsoft called that a "viral" proposition, they meant that participating in free software meant that they'd be legally required to maintain the commons. Microsoft didn't want a commons - they wanted a private preserve with a big lock on the gate.
But the commons won - Microsoft, and most other tech companies - ended up embracing free software, using it, adhering to the license terms, and contributing back.
This isn't a fairy-tale happy ending. As Mako Hill described in his brilliant 2018 Libreplanet keynote, Big Tech found ways to comply with free licenses without giving back to the commons - they gave us "open source" and got "software freedom."
Smaller tech companies couldn't pull of that move. Most of them fell into line, but many of them just flat-out cheated, betting that no one would drag them into court.
They bet wrong. Linksys ripped off GPLed code and in 2008, the Free Software Foundation forced them to comply with the license. That worked out great! It led to the creation of DD-WRT, a widely used free/open wifi base-station firmware.
FSF was able to credibly threaten Linksys's parent company, Cisco, because the authors of the programs Linksys ripped off had assigned their copyrights to the Foundation. That gave it "standing" to sue.
You see, in order to seek civil justice in the courts, you need to be an injured party. If your neighbor punches pizza deliverator in the face, *you* can't sue, because you weren't injured. You don't have standing.
The thing is, there's far more free software whose copyright *wasn't* assigned to FSF than code that the FSF has the copyright to, and thus standing to defend against violations like Linksys's.
For many of these projects, copyright is diffused over dozens or hundreds of programmers. They have standing to enforce the license, but likely lack the resources to sue a giant corporation. So some companies made a calculus that they could rob the commons with impunity.
If I understand correctly, nobody's pretending not to have standing, but the FSC is trying to create a precedent by claiming to have standing as users.
Considering the cost of lawsuits in the US and the limited means of the FSC, concentrating on creating jurisprudence appears to me as a very valid strategy.
Fosstodon is an English speaking Mastodon instance that is open to anyone who is interested in technology; particularly free & open source software.