I'm watching yet another show with a cliched "chuunibyo" character in it.
It's kind of a shame that the show Chuunibyou demo Koi ga Shitai! show came out. Originally, Chuunibyo was a general concept: it's short for "middle school 2nd year disease". Which would be about age 14. Originally it meant any cringe-worthy affectation that might afflict you at that age. So it had cross-cultural relevance. i.e. "going goth" at age 14 would count as would affecting being a gangsta rapper, or getting into sci-fi and looking down on people who like other types of media because of it.
The two main types listed by the guy who coined the term were "DQN": fake delinquents basically, who brag about fights and taking drugs when they're really wimps, and "Subcultural" types who latch onto some kind of "special" thing, which they probably know nothing about, but look down on others because of it.
the third type he listed is "Evil Eye" types who actually believe they have superpowers. Ironically, these ones don't seem to really exist in real life, while the vast majority of real-life chuunibyos are of the first two types, but because of that Chuunibyo show many people think chuunibyo is only about the "Evil Eye" type. The point I'm making is that "type 3" Chuunibyos don't really exist: the other two types do.
One ironic exchange I had was with a teenage weeb who argued with me online that the Type 3 Chuunibyo's are the only "true" Chuunibyos. The irony is that merely being a teenage anime fan who is arrogant about it, yet uninformed, is almost exactly the definition of a "subcultural chuunibyo" given by the Japanese guy who coined the term.