On those annoying full page non-scrollable javascript ads on pages

Guys, please, seriously, stop that. They don’t work on mobile or desktop devices when the window size is smaller than the area required to see the [X] Close button.
Whom ever came up with this, it is a bad idea. Stop it now. Before I get pissed off enough to write a web proxy that specifically filters out such stupidity, or purposefully renders that to an offscreen invisible layer which is forced to be non-modal.
Don’t force me to get into an arms race with you. It will not end well.