It depends on how big the subreddit is and on the moderation team (and obviously there are many corrupt mods). I still browse Reddit but the experience changes entirely when I sort by "best" instead of "hot." I usually sort by "best" anymore and I'm in a lot of small subs with good discussion that end up in my feed that way. I do browse on mobile a lot and it's definitely tempting to reflexively constantly upvote, probably by design. I love how Said it's mobile app makes me have to think more about what I vote up.