Why is implicitly ignoring the result the option you’re comparing with? Instead, create language features that encourage you to separate side-effectful function

Why is implicitly ignoring the result the option you’re comparing with? Instead, create language features that encourage you to separate side-effectful functions from value-returning ones. Also many languages use a very standard convention of assigning underscore to parts of a result value to be ignored, and discard has no clear advantages over this in my mind.