I'll admit to being one of the invisible tards.
I stumbled on RC a couple months ago and started reading the threads, and realized this is the funniest place on this site. Now, most places have a certain type of humor, and I don't really post on here because of that reason. My sense of humor kind of differs from here. That, and you guys don't appreciate new posters, at least from GMD anyway. But I can understand not wanting people from GMD, hahaha. So, I respect that and don't post, just read and laugh my fucking ass off.
*EDIT* And there are some great recommendations going on here as well.