At Caesars, while the bad beat jackpot raged around $500,000, there were no limit games being played. Just no-limit all the time.
It's unusual practice, but was done because of a group of players who were coming in and playing on the same game, according to a few sources.
The group of eight or nine players would open a new game or somehow end up on the same game on a $2/$4 limit. They would play just bad beat hands such as a quads or suited connectors. When the flop came down, if it was a potential bad beat hand, they would ensure there was at least $20 in the pot to qualify for the jackpot.
If not, they would just check it down.
And, they always tipped the dealer. That's an important component because, in my experience, as long as most dealers are being tipped, they don't care what's going on. That's most, but not all. Not the good ones.
Someone got wind of the collusion and shut down all limit games at Caesars while the BBJ is incredibly high.