Re: I paid for it...
I paid for it too - great program, but with "some issues" (in particular it had some issues with IMAP accounts).
Someone mentioned supporters not providing a single point in it's favour - so I will. It had a good UI.
By good, I mean it showed different mailboxes in different windows - instead of this really stupid modern idea that everything has to be in one window where you switch mailboxes from the menu on the left. The Eudora way is just so much easier to work with.
I only stopped using it when a system upgrade stopped it working.