Who do you think is a black flag in a BL compared to a red flag?

Here’s my standard:
Black flag: Zenya/ceasar/ sangwoo
Red flag: Teaju/seoin/ seungho
Yellow flag: jaekung/jitae/jaeshin
Green flag: Yoonseul/taeho/kwon
Mops: jigu/jeongdo/kurosawa
My red and yellow flags are interchangeable tho.

Okay. This seems reasonable. I see a lot of ppl calling Jaekyung a black flag.

I wonder why ppl disliked this question. Is it because I said JaeKyung and Seungho are similar? They both treated their partners horribly even though it was a transaction (one was a choice and the other wasn’t), things started to change between chapters 65-75, they both have childhood trauma and shitty dads.

Or it bc I said Killing Stalking is not a BL? I mean it could be the question itself. I mean green flags are cute and all, but there’s a reason why the red flags BL are more popular.

i honestly think jaekyung is tameable compared to zhenya. guy crazy as fuck, but considered his line of work i kind of get why he's a black flag.

for me though, a red flag is when the character was horrible with his partner but acceptable with redemption arc (like taeju, seungho and probably jk near future we'll see). and black flag is when you feel there's no point of them being together even with redemption arc– like the character giving out more trauma than loves.