This also looks like a suspicious account, at best ideologically motivated, at worst state sponsored. Look at his comments on p.3 of his comment history.
One can never be sure given that Wikipedia articles are open for anyone to edit (it's interesting to note that there's a tremendous amount of controversy over whether these atrocities indeed happened, and that Britannica did not even have a single article on it).
Regardless of the factual accuracy of any assertion, it's always important to point out when nefarious motives are behind it. Analogy: suppose every time a black person commits a crime the city newspaper publishes it and every time a white person does the same the newspaper does not cover it. Then the newspaper cannot be criticized on grounds of inaccuracy, for nothing it said is untrue. But obviously it can still be criticised for nefarious motives
Heads up that OP seems to have posted a disproportionate amount of pro China comments in the past year. This just looks like another attempt at psychological manipulation and generating more sympathy for the Chinese. Don't fall for it. Unfortunately dang given some of things he said recently can no longer be relied upon on these matters