To which I disagree.

With all the cases on reddit where it seems that outcome serves republicans - there is a counter-argument of how most major subs are democrat-sided subs. Maybe mods are republicans, but still user base is majority of democrats. r/pics, r/adviceanimals, r/therewasanattempt, r/clevercomebacks, r/facepalm - these were never primarily about politics. And now they are and these are only democrat-sided.

Or, maybe, it is astroturfing and political bots swarm these subs. Who knows at this point?