Fans of this show want to see the show last. In order to do that, they can’t reveal A to us that easily. Once A is found out and all is explained, there isn’t anywhere to go from there. I think the twists are what make the show so addicting. It is a roller coaster that I don’t want to end anytime soon. If you want to know who A really is, read the books or Google it. Just enjoy the show for all its brilliance and don’t put down the writers. That is unfair, especially when they are trying to keep our favorite show running.