Farmville's fault (Score 1)

I'm sure this has been pointed out already, but it's Farmville's fault. No Flash app should ever hang the browser for 10 seconds, or even 1 second. BlakeyFox's comment about "while(true)" is right on the money. Any operation that's going to take longer than a few frames should be broken up, and any (deservingly) self-respecting Flash programmer knows how to implement a loader.