I don't watch yogscast, it's too fucking boring and lame for me. The only person I'm subscribed to that could be called an "influencer" is Sky Williams, and he has about 370k subscribers. He actually does skits with prepared jokes, etc. These people who post garbage of them playing games with boring commentary, yeah my 13 year old nephew loves those. I remember sitting behind him one day when he was 9 and saw him watching video after video of PewDiePie. It all started to make sense.
But even people like Sky Williams would be considered an influencer. The fish rots from the top down, so it's only a matter of time before it comes to the channels I like.