I do appreciate your honesty about this, i've left some positive feedback accordingly
Hehe thanks, cheers.
But that message will be in WHM panel, not the cPanel. So your clients wont see the message, only you will see it in WHM.
this license can be used in production environment as well, "Unofficially", but i do not recommend.
Thanks for the feedback BTW.
PS : purchase only if you are thinking to use it in personal server or test/dev server.