In reply to Liber vs. Floris:
Unless Wastian did get permission, MyFonts should pull the font aysap, and both MyFonts and Wastian should forward any proceeds to De Groot.
If Lucas lodges a complaint with myfonts—if past behavior is any indication—they will pull the plug on Liber, no questions asked. Recovering ill-gotten gains is another matter, probably one for a civil court to decide, should one be so inclined as to sue.