Certainly, and I would be one of them. I'm not saying nobody does care or that nobody should, only that enough people don't care enough to make this "red X of shame" that shameful, really.
Chrome and Firefox have both had to take extreme measures for very similar things, such as web sites using expired (or even unvalidated/spoofed) SSL certificates. Google even reported that using a giant red page with warning labels didn't stop people from clicking through!
Right, and I guess I meant to imply that it is some of the unwashed non-elite masses that notice that stuff. Our product is for people who are bad at software and want an easier way to do task X, but they still know to look for the green lock. I don't have strong data but I'd just say-- don't underestimate the web knowledge of people who are mostly making cat pictures.
Chrome and Firefox have both had to take extreme measures for very similar things, such as web sites using expired (or even unvalidated/spoofed) SSL certificates. Google even reported that using a giant red page with warning labels didn't stop people from clicking through!