I've been an anti-flash guy for a pretty long time now but I've been "ok" with running flash on machines when I had flashblock installed. Today however I ceded to Adobe's nag and installed the latest upgrade to Flash -- bringing me to Flash Player 10.1 It ran mostly in the background, and I had to agree to what read like a EULA. My oh my what bullshit they pulled.
Turns out they installed McAfee anti-virus/antispyware, which I've always thought was terrible. Don't just take my word for it though. You need no further proof as to how seriously McAfee takes spyware than to see that they don't mind that their program IS INSTALLED AS SPYWARE. If you have McAfee I would be worried that for $$$ McAfee will decide some other programs aren't spyware, and allow them to be installed on your PC. Nothing is more dangerous than a false sense of security, and it's clear McAfee has little interest in your PC's security.
As for Adobe. I'm done with Flash. Bring on HTML5
I'm not the only one either.