I'm obsessed with watching Bandcamp and Google Analytics stats and it's insane how closely both of those track with my social media activity. I don't post anything for a week and visits/listens/downloads drop way off. I do some "cool hunting" and reblogging and everything shoots back up.
This is true in my experience as well; in fact, you are more likely to get results by being active in just about anything on the internet than by simply putting out music and only ever talking about that music (or not.) However, in my experience, this also drives a lot of one-off listens, ymmv