Theories ON Why We Didn't Receive Any Hogwarts Letter Until Now

*Global Warming
-The Hogwarts Owls can't take the heat and dehydrates while flying causing them to die before reaching their destination
*Muggles
-They hunt and shoot the owls!!!!!
*Deatheaters
-Who knows what they're doing even if Voldy's dead
*Ministry of Magic
-Maybe their intercepting the owls
*Magical Creatures that are Ministry of Magic Classification XXXXX
-Maybe they ate those poor owls!!:(
*Dementors
-Torturing those poor owls and giving them Dementor's Kiss!!!!

*Well....that's all i could think of as of today...i will make more and update soon!!!!*