Is there any way to report a person

There has been someone spamming under a problemtic manhwa, talking about how much they want the author to die and how they want the author to be g4ngr4ped and mu4dered. This is a very disturbing thing to see. I do not enjoy problemtic media but I do believe that spamming about murdering a REAL person brutally over fiction is just as unacceptable and even worse.
The manhwa, https://www.mangago.me/read-manga/emdr_1/
It is not just under the manhwa, you can also see them talking about stabbing people and a lot of grusome things. So please, help report this person.

I wish I could contact the Admins to get them banned easily.