Most writers who are single self-employed free-lancers know that they could write more, but they also realize that they must spend their time selling what they produce.
When writers complain to me about this well I agree with them, that it takes much more time to sell one's articles, papers, books or find a publisher, scientific research review board, magazine, journal than to write the actual piece.
It is a catch-22.
Do you write more or spend more time coordinating to insure proper payment for your abilities? Indeed, I see this dilemma, although retired, I feel for those with this challenge.
If one produces rapidly then even an editor or team of them cannot keep up or the literary agent or white paper proof-reader or fact checker, in fact it might take a whole team to keep up with my production rates, so, it makes sense to consider carefully your production mix and venue outlets.
Thus the writer for hire must decide if the amount they can write and still allow them time to market their works, if that is their goal.
As a hobby writer in retirement, I have a complete advantage over other writers as I can write without ever worrying about selling a single word.
Imagine the strength and agility I have over a professional self-proclaimed expert writer.
It would be difficult to compete with a writer who never had to sell their works, after all how could a free-lance writer keep up with someone who can write 16,800 words per day and knows that his articles, eBooks or information does not have to be perfect, because it is not for sale, it is free.
Indeed, the professional writers will say that is all its worth.
But I say they are just jealous and trying to keep up their self-esteem between popping their Prozac pills to help with their manic depression.
So, take that writers, eat my dust.