Not to mention the long-running controversy over whether Bill actually wrote all those plays.
I've heard that the controversy over Shakespeare's plays authorship was started in the 19th century, by educated "elitists" who were insulted by the idea that a man who hadn't been to college could produce the body of plays attributed to him.
And I do agree that playwriting wasn't considered that high class of a deal during Shakespeare's lifetime. It was a way to make a living, it was popular entertainment, and it wasn't even intended to be published.
Did you mean to invoke the authorship debate, or just point out the generally-settled fact that the Bard played script doctor and collaborator on some of the lesser works attributed to him?