It doesn't just happen in Hangman. Almost every Pogo game except QWERTY, bowling, Scrabble and probably a couple I have forgotten to mention pay out very low after the first game played with an auto. My theory is that it is the BH auto's rapid clicking of the " new game" and " start" and the " Ok" screens which causes Pogo software to automatically reduce the token payout after the first game. You can set your PLAY speed on the auto as slow as you can, but the auto still rapidly clicks off every Pogo nuisance screen such as the " OK" after a JP spin, or the " Play Again" screen.
I have done trials in most Pogo games where I stop the auto and click the nuisance screens myself, and when I do, the token payout goes back up to normal high levels. This is important when Pogo asks for X number of tokens to be won for a badge challenge instead of the older badges which always called for X number of games won or tasks performed ( like prizes released in Poppit).
I don't play on Pogo for tokens, as they are useless except for the token -counting weekly or M/ M challenges. There was an easy one like this recently in Battle Phlinx as a M/M challenge. Luckily, I had a good auto program which won every game I played.