Talk:Magical Mystery Cure/@comment-5926076-20130209073750/@comment-5513888-20130210000734

Scratch that, this is probably why they shut down the games: The second and more relevant limitation is that the trademark owner must act to defend any misuse of trademarks. If a company does not properly defend a trademark from misuse by third parties, there is the very real risk that the trademark may be ruled what is called a “generic trademark” (or at least invalid due to not being protected).

See? If they Don't enforce the trademark, they lose it.