We need you to confirm your action so we can be sure that you really requested a logout. If we didn't do this, anyone (or any website) would be able to send you to this page and you would automatically get logged out of pixeldrain, which would be very annoying.
To prevent this from happening we're verifying that you actually want to log out by making you click this button. Because this logout button triggers a different request type than normal page visit we can confirm that you really want to log out.