ISWYM but I'd be much, much happier if the browser functionality of mainly delivering text and images was kept separate from the application functionality of ... doing bloody everything.
I want to turn off the application side of things for my safety (and I do), but too many sites require it unnecessarily to do the most basic tasks of displaying static text and pictures.
I kind of wish major browsers would show a banner asking to enable JS, like they did for Flash and Java. This would discourage developers from using JS unless they really need it, and they'll think about graceful degradation.
But browsers won't, because they have nothing to gain from it; and it would be way too confusing for many users.
I remember when applications had to be tied to the OS, does it run on unix, linux, some other OS, or hardware... what a pain.
If it is a web app it probabbly works most places.