That be easy to test though if you were bot was effective or not, just post to unpopular subreddits, make bot votes on those submissions, then check back the next day. If votes not counted, then your bot is being ignored and you'd move on to changing your IP address or building your next bot or such.
It's a poor method of deterring bots written by people with very little experience writing such bots. Botting reddit is really easy, you'll just want lots of IPs so something like luminati.
Reddit is definitely not a paragon of anti-bot engineering, I think most of those skills exist in adtech.