In reply to Josh Broton.

What I would tell them is that running sites you build on unsupported and insecure operating systems, on unsupported and insecure browsers, is not only bad for them but for everyone who is exposed to them.

Not trying to start a contest here. Each of us have to determine what standards we apply and where we are willing to draw the line. Our choice is not support them. If we lose a client because they are unwilling to upgrade, then that's a cost I am willing to accept.

To each his own.