Although it's not universally true, I've found that Lawtia players are more reticent then players of other decks. Perhaps they've just been verbally abused too much as newcomers face LeBeau, and found it unrewarding to show that they themselves are not simple killing machines as well (e.g. hunthunthunt, whose very username reflects his/her playing style).
Hmm, now that I think about it, I WAS slightly more likely to start talking when I put some Song Sorceresses in my Deck... Although it may have been a coincidence since I usually only talk when they've talked first.