Your analogy isn't applicable here. What the OP was trying to get at is that even an individual who doesn't know anything about markets, HFT, liquidity, etc can

Your analogy isn't applicable here. What the OP was trying to get at is that even an individual who doesn't know anything about markets, HFT, liquidity, etc can still benefit from high liquidity from HFT (since it allows for transactions to occur sooner and quicker). In the AI example, the implication is that the final product isn't benefiting consumers.