then dropping IE support is a good way to force them focus on the job instead of surfing on the web. ;-)

Except when your app is meant to be used by them for work and their IT has them stuck on an old version of IE.

I know that customer requirements are pretty much unheard of in startup land but other companies have to obey this kind of limitation in order to make any money (which again is an alien concept in startup land -- not every business model survives on growth alone).

Sucks if your business's users are corporates and the CEO's PA books her bosses flights/hotels with a competitor