Re: "There are plenty of good freeware email clients out there."
I think TB's way of storing the mails in the profile is pretty annoying. (As with Outlook's .pst files, but that's no excuse). I want my actual profile, i.e. settings and the like, tucked out of the way. But my data ( the actual folders full of message) I want in a user folder, Ideally on a different partition. Easy to isolate/backup/reclaim.
Maybe it's just me. But I like settings/programmes and data segregated.. You can replace software. Data is different.