The same way you prevent yourself from engaging with trolls. Be alert, pay attention, when you get the sense you are engaging in fake content (or with a troll) then disengage.
Ok, but let's say in the future it becomes impossible to distinguish.
I use your comment
The same way you [prevent] yourself from [engaging] with trolls. Be alert, [pay attention], when you get the [sense] you are engaging in [fake content] (or with a troll) then [disengage].
The same way you [prohibit] yourself from [involving] with trolls. Be alert, [take note], when you get the [hunch] you are engaging in [fluff] (or with a troll) then [withdrawal].
That's enough data to encode.
Does even matter? As long as the replies are sufficiently relevant, and I am completely blinded.
I would urge you to be more generous with upvotes, down otes, and article flags. You see something that might be "AI"? Down vote. See an "I wrote a holy book with Claude" article? Flag. Downvote all comments on it.
This gets you in the habit of spotting slop, and sends signals to slop posters and HN moderation algorithms. If enough of us do this, we can clean up the joint.