> Maybe they were also bots, spiraling endlessly into their algorithmically optimized oblivion?

As long as they got a timer, so the bots react "between 10 and 30 mins later" and they got a limit to "5 interactions per day", otherwise, if some-five coders forget those limits, and we end up having 5 bots interacting within a 1ms of the 'previous post', Reddit will run out of storage space :)