GPL IS GPL
Yes it is, but I guess here's the thing: suing people is expensive, not necessarily productive, and doesn't really help the community. And it's expensive.
I pretty sure the WordPress Foundation wasn't set up for suing people...
And have I mentioned that it really doesn't help the community? It surely doesn't.
Also while IANAL I have read and re-read those terms and I really do believe that you should not attribute malice when just plain accidental ignorance on their part might actually be the problem. Companies get boiler plate verbiage all the time, why assume bad intentions without discussing it with them first?
DISRESPECTFUL for all members of wordpress, including me and you
Please see my above statement. Honestly, I suggest you NOT attribute negative things about them.
Edit: Quick edit, just be positive instead.