When did MyLot start using pop-ups?

I've been with myLot over a month now and you can see how much time I spend here by the number next to my name. I haven't experienced a single popup here. I normally use Firefox, but will use IE on occasion. Nope, no popups on either of them. Why don't you change your settings? Firefox allows me to unblock popups, so I'm sure there's an option TO block them.