If a wordpress theme is all your own work, then no-one else has any business telling you under what terms you distribute it. The GPL2 tself says... "You are no

If a wordpress theme is all your own work, then no-one else has any business telling you under what terms you distribute it. The GPL2 tself says... "You are not required to accept this License, since you have not signed it. However, nothing else grants you permission to modify or distribute the Program or its derivative works."