The 5K "show" number at this spread would make the average trader pay way too much in commission to bother. Unfortunately, he probably can't show more because of the cutthroat competition. It would make a lot more sense to have 5K orders across the spread, and let someone who wants to buy SIZE to bid deep into the ASK, and they that want liquidity to sell deep into the BID. Just another off the Wall St. opinion.
I also get the feeling that our little group is the biggest player on the buy side, and that Denis is probably the biggest on the sell side, and that few if any MM's are carrying real inventory. Just the same, Denis hasn't filed recently, so again, it's mere speculation.