The Problem with Building too Many Houses

I visited a friend's new home in Tampa last weekend.

The place was beautiful but it had one of those weird half-way addresses. I had to follow directions to 1500 and a half Oak St. How degrading is it to be denied a whole number? I could see if you were a mouse, living in a wall between two real addresses, 1500 and a half would make sense.

But what happens to my friend if they add another house between him and his neighbor? Does he become 1500.3333333? Or worse, what if they turn it into a circular culdesac, and his address becomes a random sequence, like 3.1248...