The problem here is monopoly, or mono culture.

The whole world is, basically, using one email client. The lack of diversity means a well written scam like this spreads easily.

I can say for certain I'd never fall for this scam -- because it looks like crap in Pine. I know I'm special, but the same applies to Thunderbird, or whatever.

There's probably a parallel to biology here. Let's get diversity back in our internet culture and with it resistance; scams like this will be harder to convince and much less likely to spread. Hopefully removing some of the incentive, too.