What is the friendly factor: I think of it like this. In the past 5 or so years, out of most large companies JYP entertainment had the most new k-pop groups like Stray Kids, Itzy, and Nmixx. I started being into k-pop in 2019 and I know every member in the previous 3 groups. Compared to YG and SM groups, or actually almost any other k-pop company, I know much more of the total people in JYP so I get a sense that I "know them better" and the brand seems more approachable, almost friendly.
Combine that with the reputation of the founder compared to, any other k-pop founder or main producer of a group. In addition to the kind of music that is more human, low intelligence, and fun; less American-ized, high art, or robot stuff. Then I feel like JYP is the company with the friendliest and most familiar image.
However there are 2 things I wonder. 1. Does everyone think like that or is it more because I recently got into K-pop? Maybe from 2010-2015 or some other time period, for example, YG or SM had many new groups and people who were into k-pop at that time see those companies as the most familiar.
2. Would people in South Korea think that JYPE is the most approachable company, the closest to the people, the most like a friend? Or maybe would they think YG is that because they respect Bigbang or something.
Also one time Blue2012, you said something along the lines of "Treasure is the first group by YG that is marketed like an idol group" and that could also be something that supports the conclusion JYP has the friendliest image.