>>djtrip+(OP)
Seems like a non problem. If it's a dull comment or just inane it'll get downvoted out of existence. If the bot actually produces something interesting about the topic, what's the problem?
>>bragr+C4
The biggest issue is GPT is often confidently incorrect about things but is good enough to sound confident/authoritative so if people got into the habit of using it the signal to noise ratio would degrade.