"Tech nerds" built web sites that only worked in IE back then and "tech nerds" are building websites now that only work in Chrome. Didn't have a clue back then, and don't have a clue now. Forget warning "non-techy" people and clean your own house first.
Ethics go out the window so long as the flow of shiny new features remains unimpeded. The only reason devs turned against IE is because Microsoft got complacent and essentially abandoned it, letting Gecko and WebKit steal the spotlight… a move that Google is smart enough to know to not repeat.
