[BluffTHIS!]

The "trick" is that when you are allin, you can quickly rebuy for the max buyin which in the case where you win the pot in question, is added to your stack, artificially increasing it. I see this in no limit all the time, where some regular players upon the first time they get AA/KK/AK just open push and do the trick so that they can stack players who already have built up a stack.

While it might be considered a loophole, and even though I don't do it, there is nothing wrong with it IMO. And the trick can save you from missing a hand when you are allin and lose, since PS doesn't have the software first wait for you to rebuy like UB does.