I think the main use for K and the other APL family languages is programmer lock-in. If you can get your employer to buy in and write the entire codebase in one

I think the main use for K and the other APL family languages is programmer lock-in. If you can get your employer to buy in and write the entire codebase in one of these languages, you can establish yourself as essentially irreplaceable and then demand large raises to retain you.