I've seen my aging father change settings on a new computer to turn on showing file extensions on Windows, because he and a lot of older users were on the cutting edge of computing back when knowing the file extension was useful for choosing how to open it.

Sure, I'm acutely aware that there are stupid users out there; I've worked I.T. But there is also a whole spectrum of computer users with varying levels of computer proficiency out there, who us "computer people" don't see because they're not the ones who necessarily need help or cause problems. You can't necessarily extrapolate a visible minority of incompetent computer users to make statements about the entire population.

I don't necessarily have an opinion on whether that's enough justification to get rid of the .zip TLD. I'm just tired of the anti-user sentiment I'm hearing here.