Why (if) Grid trading is a good/bad idea?

I did a lot of research on grid trading. Found that people usually don’t give it much thought. So i started to build a strategy.(still in process).
Why? Because came to realize that the big player of the industry cant use stop losses, I mean they cant lose 2% of the 2 billion dollars just because they are wrong. There has to be another way.
So I was looking for a pair with the tightest range. And the best selection was usdjpy. Although not too small range, but 4000 pips channel contains data from 2009.

My question is, like there use to be a cap/floor on eurchf, are there any other pairs with similar traits? Any ideas, direction, help, indi, ea, site, will be greatly appreciated.