You're incorrect on what the GPL 2 and 3 require. You should read them, it's pretty approachable language. Actually enforcing the GPL, that's an entirely diff

You're incorrect on what the GPL 2 and 3 require. You should read them, it's pretty approachable language. Actually enforcing the GPL, that's an entirely different issue. Some jurisdictions have found that only the original authors of a line of code have standing to file suit under GPL, not end users. The VMware case also demonstrated that even if you have an original author, at least in Germany, the bar is very high to prove that the work is infringed, basically to the point of impossibility. I don't believe any court has found in favor of the GPL in regards to end user being harmed.