Ok, now I'm wondering who you were and if my family contributed to any poor lounge behavior you witnessed!
I couldn't figure out the pattern this past week. Sometimes the lounge would be dead then other times it would be quite crowded - a very erratic flow of people. That tends to happen every time we've stayed at Poly, but it seemed a bit more pronounced this week.
Those afternoon / evening storms we had a few days don't help - especially if it happens during apps. It really pushes a lot of people in the lounge and they tend to hang. And eat.
The numbers are probably small but I do suspect you see people sneak in here and there. I've also personally witnessed (on at least one occasion) a large multi-room family who had one CL room and the rest non-CL, but then everyone used the lounge.
We were there last year for 7/3 and 7/4 as well and actually thought lounge crowds were a bit better overall this year (7/3 was a zoo last year). But that obviously could have just been moment in time conditions that worked in our favor.
CL can be a fickle thing. We've had times where they may run out of a dish or two (not all that often, but it can happen), and we've had times where 7pm rolls around and CMs are heaping trays of dishes at us since there is so much left over. Go figure.