I think maybe it’s that cramming never works? Like you need to actually digest content for it to stick in your memory. I could be giving too much credit though.

The website actually lists a moral under every single post. This one is about consuming information and knowledge and how if you try to shove too much info on at once you won't actually take all of it in. The comic however just makes it look like people like to eat books.

Eating book is bad for you