I remember when someone posted here their javascript project demonstrating how you could make ads and modals pop up when the user's mouse left the page. There

I remember when someone posted here their javascript project demonstrating how you could make ads and modals pop up when the user's mouse left the page. There were a lot of comments about the potential for abuse, but ultimately it was decided that like all science it could not be inherently evil. Still, I sometimes wonder if they feel any remorse.