The more relevant question is: who is backing them and what do they hope to get out of this lawsuit? I wouldn't be surprised if this is paid for by some venture

The more relevant question is: who is backing them and what do they hope to get out of this lawsuit? I wouldn't be surprised if this is paid for by some venture fund and that they are seeking financial compensation of some sort. I call BS on them trying to somehow helping the open source community by dishing out lawsuits. It's rather doing the opposite. Anyone using GPL-licensed software is going to be dead-scared to get sued by some copyleft fundamentalists.