That's priceless.
I bet that moronic idea comes from a lot of guys who got pissed when they found out they were reading books by a chick!
J.K. was used to be misleading, to fool the little boys into thinking they weren't reading books written by a women, cuz how many boys wanna read books by women?
Joanne Rowling doesn't even have a middle name.
Now that's crazy.
It's got plenty of historical precedent-- George Sand, George Eliot, etc.-- and in my neck of the writing world, which is romance, noms de plume are the usual. Many successful writers have different ones for their different series, even. Heather Graham Pozessere, Andre Norton, Kim Harrison-Dawn Cook spring to mind. Men do it too. Lots of romance authoresses are actually men.
As for the original subject? I felt the letdown after the final book, not the final movie, having read them as a matter of course. But I love how the child stars have grown into sexy adults, especially Neville and Ron and the twins.
I admit to writing and consuming lots of naughty Potter fan-fictions.