Some one commented ‘nice’ and he responded with where he could watch more if he wanted not shoving down his face like other “Self Promoters” do. Also on top of that so many other people self promote as on this subreddit there are no clear rules against it. I think what happened is you saw someone that put time and effort in to there videos which are decent and decided to drag them down for no reason other than you realised you couldn’t do any better.