>So, with all the stories about sites discriminating against non-IE clients,
Discriminators are users. Customer (Leumi in this case) looking at Browser Statistics won't pay money on customization for Netscape+Mozilla.
If you and all your friends will browse about with NS or Mozilla, customers will pay for supporting NS and you will enjoy.
NSs and Mozilla takes 3%, IEs - 96%. If man*month of Web developer costs to Leumi 15000$, development of "IE-ed" site takes 10 man*month and "IE-ed and NS-ed" 15 man*month, who need to pay 5000*5=25000$ for 2% of NS users?
