Hi Mudmage, and welcome!
Very good question, and a very common one...
I agree with everything Master Mog has said, except that I would replace the word "rule" with "guideline".
If the method is working for you and you're getting the results you want, then go for it!
I would just add though, to supplement Mog's comments, that
if you're curious about what might happen if you
do take the occasional day off, or at least occasionally follow the
guidelines as developed and refined over the last 14 years - well... feel free to explore!
Wishing you all the best - and I hope you'll go ahead and start your personal blog by clicking the Blogs link at the right hand side of the top menu bar.
Looking forward to hearing more from you...
Jack