> Covering your landing page or blog articles with a pop-up is a great way to capture some extra subscribers to your mailing list.
Is there data for this?
SumoMe ran a study of over 300 million pop-ups that they served using their Welcome Mat plugin & found that their pop-up was the highest performing of all of their email address capturing plugins.
I am just so used to the routine of [ESC] -> click elsewhere -> look for a X to click (when adblock fails) that I tend to ignore the effect these tactics can have.