its complicated
years long thing
the basics are that erop and neko used to date (neko was anoying but chill back then) and then they had a very messy breakup. long story short, neko became a neo nazi (allegedly, ask millie or smth) but has said transphobic things (along the lines of "being trans is a kink" or smth) which is why they are banned here
i will say they both made mistakes on how it was all handled, but it has been a long time running