Google Currents Subscribing me to random feeds??

I was just wondering if anyone else has encountered this issue, and know the reason behind it: Every now and then, I get some random subscription to a new feed, and I'm not the one doing it. Im not sure how frequently it happens, but I just logged on today and saw a subscription

For those who use Currents, has it happened to you and why? Has someone backed my account and is adding new feeds or is this some feature that Google doesn't explain properly (or, at all).