Yeah, it boosts Youtube videos with views, but then the audience retention is horrible, which causes the video to rank worse.
Atleast that's what I noticed. I had been using it for a long while now and getting some YT videos with like 1500+ upvotes, but it seems like a lot of people don't watch much of it, which messes up my ratings. Plus I don't seem to get any ad revenue.
Now that I'm not using reddit much anymore, I find my videos are ranking better.
P.S. - As for the intelligent individuals, maybe that's why there is not much ad revenue because they are all using adblocker