You guys figured all this shit out?
I couldn't have even if you gave me 300 years
I didn't either until I saw the raws. Although I think there is something missing with this translation that did felt like a "oh duh" . When they were talking about Mister N pretending to be a monster I don't think they were talking about them pretending to be a monster period.
A swarm of intelligent give insects that acts in this a monster. What they were calling him out on was pretending to be another or similar to a pre-existing monster, a well known one from internet culture of all things.
Which at the time I did think was weird as fuck but I didn't give the manga enough credit. It is supposed to be put of place on purpose. Of the monsters we see non of them are just like a diet version or even resemble other monsters, either classical least of fucking creepy pasta.
The fact that is there is just a monster who is just like slanderman and claims to be like him is a clue that said monster is lying through his teeth.
Stuff like the chameleons are also a misdirect. If you walk into the room and see all those chameleons you would start thinking that he is related to that or they have something to do with his nature.
But like the MC said that doesn't really fit.
It's all these things that don't make sense. Because Mister N is just a fucking liar. So you can't count of on anything he says or plans to be clues, they are just misdirections.