I never had much of a call for word processing but I do know that a good deal of the WordStar command-set and philosophy made it into a host of DOS text editors

I never had much of a call for word processing but I do know that a good deal of the WordStar command-set and philosophy made it into a host of DOS text editors for several decades. And that in turn influenced the "easy and familiar" design of pine/pico/nano editors for *nix...