[phpisthebest]

>>Think about it for a second

Perhaps instead of telling everyone to think on things for a second, you should think on things for longer than a second?

>And how vulnerable are you to phishing if your special-purpose email address that you only use for one specific purpose receives zero spam?

This would depend on how you setup the email address, if it truly a separate email address i.e a separate account not just an alias then phishing is not the concern but management of the accounts becomes a huge problem

I use separate alias's for every service against my own custom domain that has a single email account. This is not to prevent phishing but to detect when a breach occurred or when my info is sold, you assume that when you sign up for a service only that service will ever have access to your info, many many many companies and service sell your email address to marketers.