I don't really use that word, only when describing things like mountains or charts.
Better words would be "good", "great", "Thanks for the chapter", "I had a blast reading this fine piece of literature." [queue classical music] and so on.
Guys please just answer the question 😭 I said “peak” like a normal functioning member of society. It just means great or really good. I’m not reinventing the English language, I promise.
Tsk Tsk Tsk, you make such impertinent statement and shy away from its consequences. Truly, quite impertinent. A true manga reader only shows a hint of enjoyment with "Thanks for the chapter." as a chapter comment. No more, no less, lest he make a fool of himself. To utter and write words such as "Peak" (retching noises) shan't leave our keyboards. We'd be no better than peasants.
I don't think people used the word "peak" that much before 2020.