Just one look at their profile and you can immediately see just how toxic they are as a person in general. The comments they leave on other comics cross the line with merely just saying their opinions towards noncanon/implied ships, and with their over-invalidation you could sense that they're also coming off as offensive to the queer community itself.
don't mean to excuse their actions when i say this, but there is always going to be trolls and ragebaiters like that. why should anyone give them attention?
Because there's a clear line between "ragebaiting" people and intentionally disrespecting not just one but multiple fandoms. And like I said previously, their arguments towards noncanon/implied ships go way out of line between being an AW and ragebaiting PPL and subtly expressing their homophobia and hate towards these ships. It's not as serious of an issue now but this person's acts can influence others to take on the same idea and spread such opinions throughout the community.
I've seen him and his comments on not just this manwha but also other comics, heavily disrespecting the fandoms and bitching about noncanon ships all while having a character as his profile from a very problematic manwha itself┐(´ー｀)┌