It's a lot more useful to take this advice as, "Reconsider the ways in which you talk about people who use your product or service."
It's not "call them customers" or "call them buyers/sellers"; just think about what makes sense, what evokes the right thoughts, and use that word instead. If 'users' works for you, then keep doing that.
It's not "call them customers" or "call them buyers/sellers"; just think about what makes sense, what evokes the right thoughts, and use that word instead. If 'users' works for you, then keep doing that.