Ok fair enough. But, if I were you, just to be 100% excited about this strategy, I'd ask myself these questions: 1. Am I measuring the quality of the email a

Ok fair enough. But, if I were you, just to be 100% excited about this strategy, I'd ask myself these questions: 1. Am I measuring the quality of the email addresses before an after the introduction of the popup? 2. Am I measuring the number of visitors who abandoned my site (closed my page) immediately after I interrupted their visit with my popup? Ultimately, the question ought to be: what am I really measuring? Is it the number of new rows in my emails table or the impact on brand perception and ultimately bottom line?