Nothing of statistical significance, really. I have a hypothesis as to why.
First - there's not enough data there to see much correlation. Realistically, we need to look at time periods that are just longer than V4L has been around. Second - We vocal community members are not _the_ meat and potatoes of V4L. Think of the people you've convinced to try and/or switch to
vaping... How many are really big forum participants? We all worship at the altar of volume in retail. A thousand $50 orders is going to swing even their earnings more than a hundred $100 orders. We're not even tracking dollar figures here, just order numbers. So the small repeat orders are the "winners". Locking someone in at $10/week forever is going to skew the chart more than some of our "big orderers".
In fact, we can identify that last paragraph as the major bias in this regression. It's biased towards order number and away from order value. In as much - it really is just a curiosity except where volume ultimately is some function of recurring revenue.
This is an addiction, make no mistake. The majority of us are going to reorder, sale or no, when we need it. We may be tempted to make small forays into uncharted territories by some discount, but it's not going to effect the meat-and-potatoes-bread-and-butter of the company, vis-a-vis the regular standing repeat addiction-satisfying order.
I believe these "sales" have more to do with Steve and team giving back to the loyal supporters than it does boosting sales. It also creates a level of excitement, freshness, "in-ness", and supportive spirit.