I remember hearing this from numerous writers and YouTubers and I found it interesting. Basically "it doesn't have to mean anything, but SOMETHING has to matter". It's a contradiction I feel all writers need to face. Especially ones starting off because I've met a lot that're like "BUT I DON'T WANT IT TO MEAN ANYTHING I WANT TO WRITE SILLY STUFF!".
Speaking of, I think you need to be careful of running the risk of ending up like those people who write off something as "there's no way this [blank] has any meaning to it despite being silly!". This is why I take every media I watch as seriously as possible. I just feel bad for people who go "HA HA, THIS STORY HAS RUBBER SUITS IN IT! LOOK HOW CAMPY IT IS!" but then you do an analysis on it and it's some of the hardest stuff ever. Like I was watching an old B-Movie "the Alligator People". A huge lesson there is "certain truths are not worth learning" and turns into this game of whether or not the woman is telling the truth or not. For example... after watching the movie you think it's a cut and dry "yes"... but then how did the main character manage get these dead people's perspectives in her story? It plays with the audience's expectations who'd just write it off as another cheap B-Movie. Especially with what the Alligator person looks like. The third act is downright silly, that you think "is this budget... or is the movie purposely doing this?". Like we're learning about all this in a psychiatrist's office and even THEY are like "Okay... ain't no way... but just to be sure, let's not tell her what she said when we used hypnosis on her".
ON TOP OF THAT, if you are doing a lesson, it has to match-up with the aesthetics. I see a lot of people who go "The lesson is no lesson here's a bunch of random imagry" IT DOESN'T WORK THAT WAY lol. Even the most random stuff like Bobobobobobobo was consistent. It was mocking the shonen genre. The anime ending is even the biggest "f you" to the concept of cliffhangers in manga. I remember feeling so cheated as a kid, waiting for the final episode, only for it to never come out. I then realized that IT WAS TEACHING ME A LESSON lmao. Bobobobobobo acted as an introductory to Shonen for SO MANY little children and it's funny is that it was basically telling them "When you grow up, be prepared for these tropes... because you're going to see A LOT of them".
Btw YIIK is the best case study of what not to do.... same with Hat in Time. Hat in Time is interesting because that game is STUPID fun. Its one of the few times where the content saved it... otherwise the aesthetic theme wise is holding it back.