These are what we call the 'YMMV items.' Things that some people find in this work. We call them 'your mileage might vary' because not everyone sees these things in the same way. This starts discussions in the trope lists, a thing we don't want. Please use the discussion page if you'd like to discuss any of these items.
Big Lipped Alligator Moment: At the end of his third blog video, after signing off, he leaned his face right into the camera for no reason. However, this is a Brick Joke as the next video starts with him in the same position, so for months it seemed like a BLAM.
At the end of a Final Fantasy XIII video, he started talking while giving special audio effects to his voice.
Ensemble Dark Horse: His brother, JB, occasionally records with him for certain games. The comments section prove that he is quite popular.
Seinfeld Is Unfunny: His earlier Let's Play videos are a little more informative and they can come off as sounding like he's not really having much fun as he is now. He doesn't make fun of the games as much or deliver a couple Take That, Us or Take That lines, occasionally yelling "GAAAAAME!".
However; some of them actually cut to video clips that are relevant more. As funny as they could be, he did this much less because of how often they detracted from the flow.
Discussed in his Let's Play of Lunar, about how the animated scene was high tech stuff back in the day.