It's interesting that the goal is to increase the amount of words written rather than their quality. I suppose which of those matter more depends on the type of work you are writing.
Don't get too hung up on words written as being considered a metric of quality - for authors, it's a metric of productivity, quality or otherwise. Unlike (most) code, a novel generally has a roughly intended length when it's started (compare harry potter 1 vs 7; the light novel vs the must-service-my-fans). It can take you a few years to reach that, or a few months.
Words per session for an author does not translate into lines of code for a coder - they're different beasts.