To be honest, there is not a single reason why ChatGPT could not easily help in online poker. The bot writes articles perfectly and shows creative skills. And calculations are very simple for him, because mathematics is the basis of computers and their logic. I think that there are already online scripts with a built-in ChatGPT that can play as a bot owner.
I think this will soon become a big problem.
There is one big reason that ChatGPT can't help in poker and that is it would get banned by casino. Already in chess we have computers that are much stronger than human opponents and would make any form of competition unfair. That is why using software in chess tournaments is banned. In poker there might be a brief period of time where ChatGPT is allowed, but once the use becomes common the casinos will have to react. If ChatGPT becomes allowed permanently, then it would transfer the player base to only gamblers with computer support. Let's say you are an amateur poker player that plays a few times per month that only plays for fun. Usually you would only make small wins or losses over time, but all of a sudden you tend to lose large. If that happens a few times in a row, it's not going to be fun anymore and you will quit. So eventually the poker table will only be filled with ChatGPT bots, where nobody has the edge again. I hope that's not going to be the future of Poker.