Me too bro. Me too. Also the fact that he's stupidly kind? He's not perfect by any means, he's a very flawed character with too much bias for Ido but gosh. His kindness it just too pure man. I love the three of them together but at the same time, I don't want them to LMAO. My boy has been tossed around, from hell and back, raped, traumatized, and at some point emotionally tortured, so I really do pity him. And even after all that HE WAS STILL THE PUREST BEAN. I'm glad the author seems to adore him too
Some people do . Also no, it was stated that "their position wasn't always that way" implying that both weren't top before and that in ch 4, Jin stated he handled Ido's thing before. Also I don't really ship them? Since much of the focus was on Geomwoo and it was only later when Jin's arc was explored (ironically enough this is a poly, but idc lmao) but I'm not blind and some people does wonder so I just try to give information that might help them or atleast find enjoyable.

Good news : according to the author's notes, Jin and Ido did 'IT' before. With the implications that Jim bottomed
Bad news: It was never shown. Not a smidge. No nothing. Just words that they did it before. Author also implied that these two (after my baby boi Geomwoo appeared) are now exclusively tops. So uhhh... To the switch yearners out there... condolence ig