I wonder if you can just quarantine it to make it a 'envelope' aka a mostly hidden post that you can collapse, to archive machine answers in a thread, perhaps at the bottom.
So it would not be a bother but if you are really digging you can open it up to see what fell into the trench.
I call it a bot bilge. It could actually prove useful because its anti censorship, i.e. for someone that does not have bot access, it could be useful. And the AI responses MIGHT have a level of 'curation' to them, or at least maybe someone was fooling around with it for a while to get a more accurate answer, so deleting it is a slight bit of wasted effort.
"Bilge water
The word is sometimes also used to describe the water that collects in this area. Water that does not drain off the side of the deck or through a hole in the hull, which it would typically do via a scupper, instead drains down into the ship into the bilge. This water may be from rough seas, rain, leaks in the hull or stuffing box, or other interior spillage. The collected water must be pumped out to prevent the bilge from becoming too full and threatening to sink the ship.
Bilge water can be found aboard almost every vessel. Depending on the ship's design and function, bilge water may contain water, oil, urine, detergents, solvents, chemicals, pitch, particles, and other materials.
By housing water in a compartment, the bilge keeps these liquids below decks, making it safer for the crew to operate the vessel and for people to move around in heavy weather. "

Interestingly, the system shock remake (2023) has a feature that if you drop an item into a endless void, it is 'collected' in a lost and found area on the lowest level of the station.