Wow, that was tough. I understand many people around the globe do not speak English. However with that type of commenting, I don't think English diction is the problem because I am sure he can do something about it if he wants to. To your tag's point, I think those are fake comments just trying to get attention.
I met someone here on the blockchain who does not speak or write in English. She writes in Spanish. At first I was the one translating through Google my replies to her. And then I thought maybe it is time that she also get the hang of it so I started replying in English. She took it. She still replies in Spanish but when I translate, it is a well comprehended response. Now, she a very active hunter on Steemhunt which is an English-only platform! If there's a will, there's a way. 😊