It's not a strict rule. Shounen Jump features a variety of manga, and some might not strictly fit the typical shounen mold. It depends on various factors like themes, target audience, and storytelling style.
Kakao manhwas tend to have frequent updates and interaction with readers. They might have elements of interactivity or special features available through the Kakao platform. The characters are often developed in an appealing way to draw in the viewers.
Definitely. Shounen light novels are a definite thing. They typically target teenage boys and offer exciting and engaging stories in a light and easy-to-read format.