I think lurking around in the chat room is fine. I would probably introduce myself when I entered (it's not like you don't hear a knock knock anyway)....The chat room is the best I have ever seen....though I am biased.
On another feature related item if anyone hasn't tried the new "album" in your personal profile, I strongly encourage it. It is really super easy to do. There is always a button that says download and it takes 5 seconds to go from your computer to the album. Very cool feature. I practiced last night....Then when someone clicks on your name they can see what you collect.....it could even help you find a card you still need!!
http://www.net54baseball.com/member.php?u=1