Check the FSF's violations of GNU licenses page. You can also email the FSF's licensing and compliance lab at licensing@fsf.org and our team would be happy to assist.

Xonotic

Probably the Free Software Directory.

Some superficial thoughts, please correct me if I'm wrong. Isn't AdNauseam generating more traffic to ads, thus increasing their value in terms of metrics? Also, do people really think that agencies like NSA, which are capable of extremely sophisticated surveillance, can be disrupted by random text in emails? These tools sound like a waste of time to me.

For DAW, you may also want to check out Zrythm and Ardour.

The patent was about a "sorting system". More info here.