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.
Ear Worm: The song from Dan Bull that plays at the end of the majority of his videos, where he links to some other videos (including the below mentioned Mystery Videos).
Hate Dumb: There are some people who say that Dan only likes bad games because he liked the new Dm C Devil May Cry, and disliked the new Tomb Raider... even though they have the exact same Metacritic scores.
Hilarious in Hindsight: On Dan's "People to watch! (and not in a hiding-in-the-bushes way...)" video on his second channel, he gives a shout out to CharlieIsSoCoolLike and he mentions Charlies outro by Steven Friday and Dan considers himself low-class because he doesn't even have an outro. Come sometime later, and who does his outro?
Memetic Mutation: Dan posts a link to a "mystery video" at the end of most of his videos. Fans will often comment on said mystery videos: "I was sent here by a man who *something that Dan did in the video*." Examples include: "I was sent here by a man who made a nuclear reactor in his bedroom while trying to find his glasses." from a "3 free game Friday" video in which Dan played I Can't Find My Glasses.