Memory being what it is, I found the original post I referenced. This is from Gatzby, who was a dev here when he posted in Sep 2015, in the thread, “The Fairness Debate.”
In our system, random is truly random. The dealer program has no regard for player history or what cards you’ve been dealt in the past, nor does it account for the cards that have been dealt previously at the table. It does not calculate the types of hands that will be dealt and it certainly does not favor one player over another.
Here’s how the dealer works: For each hand, we create a new deck deck of cards ordered lowest to highest. A card is then randomly selected from that deck and put it into another deck. This process is repeated until every card has been randomly selected from the first deck and moved to the second deck. After the second (entirely random) deck is complete, the dealing process begins from the top of the deck just as you would have in real life poker. As mentioned before, this process has absolutely no knowledge of anybody’s hands or previous decks.
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