1) They probably have some data that indicates that this tactic generally works for them. There's a ton of shitty businesses and landing pages that use random d

1) They probably have some data that indicates that this tactic generally works for them. There's a ton of shitty businesses and landing pages that use random dumb popups that make money: not Facebook or Google money, but some solid income. 2) If I had to guess, I'd bet that tactic works well on a less experienced and technically unsophisticated crowd. You might not be the target audience for some dumb popup, but a less experienced user who sees some flashy warning message might just take the bait.