Thank you for your kind words! I wouldn't consider fun events as very serious, just interesting things that can happen at random when you play - sometimes serious, sometimes not. If you know the fun events in Undertale, the fun events here will be similar.
The fun value detector was a method to make it easier to find fun events if you want to search for them, and I added lore underneath to give it context. No fun events right now are anything big (e.g. none lead to huge secret paths or endings). To remove any confusion I could tone down the seriousness of the lore part or display it elsewhere in the game.
Making a guide sounds fun! Good luck! Not sure where you could put it up since there is no dedicated community that I know of besides this comments section. I believe comments can have attached images, so that could be a way to share!
edit: I reread the fun event lore page. There are indirect references to the origin of the game in-lore as well as one of the secret endings, which is NOT a fun event because you can reach it no matter what fun value.