I'm not a Yahoo! Mail user
Not eating your own dog food eh? I don't blame you. I'm a gmail user, mainly for the better interface, spam filter, and easy integration with other Google products I use (Calendar, Maps, Voice, Android). We use Yahoo Small Business mail at work and it's painful to use. I end up just checking mail on my phone instead of the web interface. Things are counter-intuitive on Yahoo, such as having to actively enable saving sent email instead of having it on by default.
My main reasons are spam filter, imap support and inability to use my own domain.
I remember trying it out as an intern, but don't recall it being called "minty". Is this a new development?
Minty is new. They only released the internal testing recently.
Sorry, my bad. I interpreted "I'm not a Yahoo! Mail user" as "not Yahoo! employee." :|