I've had success with this in the past. I'll make a super simple squeeze with signup above the fold, attention grabbing colors, give away tons of stuff in return for their email, and even sometimes use autoplay videos and target only desktop (desktop traffic is garbage because of click machines, but videos will play automatically)... I get tons of signups when I do it, and the interstitial traffic is really really cheap. Interstitial traffic is like a cross between CPC and CPM. You pay CPM prices but it's and actual hit to your site. I just wanted to see if anyone is using this much?