Because WB owns the rights for production.
What the hell? Why is WB calling the shots? HP belongs to JK Rowling.
No they don't, but they can cause problems with starkid. Part of the reason starkid was allowed to post the plays was the agreement with WB that they never charged for tickets or that they were the only ones that produced the play. Now these fans charged for tickets, even though all the money went to goodwill. They did it illegally. Now starkid may have lawsuits on their hands.
Meh...They ain't got nothing on Starkid lol.