[derefr]

I don’t think the technique would be meant to counter blind voting, but rather strategic voting—i.e. counter-voting some particular post down/up with a random member of your bot army every time it’s voted up/down, to keep its count high/low/at some constant value.

I say this, not because it seems like an especially common style of bot to be running, but rather because 1. it would be a rather heavy backend write load on the site if two bots doing this in opposite directions did exist, and ever “clashed” on the same post—and, much more problematically, a never-ending load, as the bots would never be satisfied; and 2. such bots do depend on the exact vote count passing some threshold, so fuzzing votes is a simple way to make such bots confused—not all the time, but probabilistically, enough of the time to make any such “clash” loops eventually quiesce rather than going on forever.