What i am interested in knowing is the 2 EKG spikes in the chart (huge spikes up and down) a result of some form of advertising Driving sign ups? Normally i would not ask but that is rather dramatic. Whats do you think the driving force might be? Youtube driven maybe? Look at 2017 06-08 in two months the number of users almost doubled. Thats beginning facebook type numbers. Thank you ahead of time. this article is worth my weak upvote. :)