Overloading whitespace is fine for machines, but it doesn't improve human readability. In The days when memory and storage were small and runtime compression would crush throughput saving a byte here or there made sense in the mainstream. But these days? The critical reasons to use text tend to be either hitting an existing interface or human readability, and with 1GB of RAM about the price of a Happy Meal, the risks of invisible textual complexity probably outweigh any benefit.
