Judging by many of the questions on SO, I'm surprised the people asking them can even manage to use a web browser with the default settings.

If someone ran a malware-ad campaign on SO, I'm sure a significant number of people would be infected.

Considering how often I rebuild my dev machines, I couldn't imagine tracking down all these obscure plugins every time I built a box. Firefox gets installed, along with Firebug and the AWS plugins, then sits idle in the taskbar until I need to use it for testing something.

I'm actually surprised by how many programmers DO have adblock.