Ouch. I'm really sorry about that.

I got an invite from someone and then went through the registration
process which checks your contacts from GMail list as part of the
registration funnel and allows you to add users in your contacts.
Little did I know that below the fold, it included every email
recipient from my GMail, so when I clicked submit, it sent to every
contact in my GMail account including all my email lists.

How emabarassing for me. :( I should have read the copy on the page
first. Sorry again.

-Michael