I have to chuckle whenever I see a post like this. There's so much adolescent machismo dripping all over it but it's just narrow minded. Like the OP never heard of malware. It's like there exist these tiny isolated worlds, these little walled gardens, these extremes, where it's either a virus that roots your phone and rewrites the whole OS into a spam machine, or it's the user's fault.
By the way how many apps have you all installed that asked for full internet access that you couldn't immediately, on the spot, think of why it needed internet access?
nothing is screened in the market. It just requires developers to self sign their apps, which does nothing to prevent malware. It just leaves a unique ID so google could block that app after
something went wrong.
Now this is not to say I'm all chicken little/the sky is falling over here. I have a perfectly reasonable level of trust in the effectiveness of the community policing the apps. But to insult those downloading anti-virus apps is a bit ignorant in my opinion.