Yes, Jo is laughing at you.
I guess we should start a post about the (edit) confirmed REAL epilogue going around. SPOILERS and NON-STOP WHINING in the links.

ONTD_trash: Scans in the comments.

spoil_me_dh: Your writing is shit, Jo!

Edit: News sites are talking about the leak now and there's a locked post on spoil_me_dh where the book was scanned showing the dust jacket, colored hard bookcover, copyrights, title and dedications pages. Unless someone decided to fake all that as well as 700+ pages, the leak is real.

Edit^2: A mousy pointed out there is a new lj community: its_a_fake.

Edit^3: There's a plan of mass suicide on JKR's lawn if she doesn't write a Harmoanian ending the book better. (Thanks nekoama!)

Edit^4: A mousy pointed out there's a new picture of the book going around with a certain lj community in the background. Another blow for the FAKE side.