OK let's suppose that those "pseudollites" are posted wherever it was convenient, or possible.
GPS receivers work even in the middle of the ocean. Even in the middle of the Atlantic or Pacific, far far out of sight of any land, even the smallest island or reef. Where was the pseudollite? (Actually, I think there'd have to be more that one pseudollite position required to get this effect.) Is it possible that, somehow, the govts of the world pounded poles with signal generators on them in the middle of the ocean - poles long enough to reach to the sea bottom and still post a signal generator high enough over the water that it would be picked up by a ship at sea hundreds of miles away. The enormous expense of posting so many huge poles, and the number of men and boats used in pounding these posts into the ocean floor .... and the fact that you've never heard a word about even one of those men or boats. And the fact that no ship has ever bumped into one of the pseudollite poles.
You should ask yourself, how much work and manpower and money is involved in maintaining this supposed hoax - contrasted to what money or advantage there is in maintaining the hoax, and the fact that nobody involved has ever spilled the beans?