That quote was a bug report, and it was already fixed at the time of writing :)
The way it works right now: stations are distinct, and have their own history, but are shared across users. The fact that the same history is still there just means that nobody else used the finance station in the meantime. Am I misunderstanding something?
Why don't we take this offline? My email is in my profile. If you send me email I can set you up with a user account. It's extremely unpolished, but you'll be able to import your own feeds and so on.
This goes for anyone else reading this, btw. Send me email and I'll set you up with your own private feedreader on readwarp.