You know there are a lot of people in the world that have the capacity to build their own Bot to trade for them. And sure enough, there are a lot. That's why exchanges offer API access or WebSockets to let people trade in their exchange. Remember that there is hype with Doge, regardless of the functionality of the coin, if you have someone like Elon Musk hyping the asset, then there would be a rise in demand since Elon is not just "somebody".
With or without a bot, you could still trade to make money. It's being with the trend or predicting the market correctly.
I agree with you but I doubt most of them are having the resources compared to Elon Musk to build a super complex trading AI.
I'm just presenting an alternative possibility that could be real, like making the AI learn how people react to Hype, FOMO, keeping track of people's perception of how they trade, and betting against them effectively enough that there's no counterplay.
I could be wrong with my assumption but there's a possibility since in the past Elon Musk stated about building such an effective bot.