Well, now we know

While I'm killing time online trying to see if PayPal will unlock my funds if I log in enough times a day, I looked into the feed reader problem. And it says this:

Google Reader doesn't currently support authentication for private feeds that require a username and password to view. Such feeds will appear to be empty or missing if you try to subscribe to them.

I haven't looked at everyone else's feed readers, but that's how it is. Sorry it's a nuisance.