My understanding is that the GPL doesn't have fucktons of precedent behind it in court. You bet the house on a big case and lose, the precedent will stick with GPL and may even weaken all copyleft licenses.
Also, it's better to gently apply pressure and set a track record of violators taking corrective measures so when you end up in court one day you've got a list of people and corporate entities which do comply because they believed that the terms were clear enough, which would lend weight to your argument.
Also, it's better to gently apply pressure and set a track record of violators taking corrective measures so when you end up in court one day you've got a list of people and corporate entities which do comply because they believed that the terms were clear enough, which would lend weight to your argument.
Saying this as a GPL hardliner myself.