My theory is that this is already happening, just with a mix of bots and human actors.

Start keeping a list of common "retorts" to certain topics. Then jump sites and see if those retorts are used there too. You'll find almost copy and paste wording.

There are edge cases where it looks like two of these semi-automated groups square off and you get bot gibberish that goes on to infinity.

Dead internet theory may be a bit closer to truth then we like to admit.