This post about a catastrophic data loss with NetNewsWire makes something very clear to me - backups are important. I know that people have lost data with BottomFeeder. I try to be careful about user data, but bad stuff does, unfortunately, happen. Here's what you need to backup from Bf - the contents of the btfSave directory. That's where all application data resides, so if you back that up, you should be able to get right back to the saved state easily.