And keep sending regular, non-drug related mail to it? A few packages a week. Anything from electronics to clothes to supplements, whatever. Random stuff from ebay. Vitamins. How are they supposed to know what is illegal and what isn't? They can't scrutinize it all. If something you ordered got seized and its only a small, personal use amount, but they seized a bunch of things all mailed at once from one particular vendor (asshole!) to a bunch of different people, are they really going to target you specifically? Or all those other people? I mean for all they know, perhaps someone stole your mail and used your address to order drugs in your name because they know your postal carriers leave packages in your door that anyone could just walk right up and take.
You just answered your own question m8