I am not convinced this is original but I have not been able to prove otherwise yet. Looking at the author's posts I do not get the sense they were written by the same person. I may be mistaken, but this just feels off to me.
I downloaded some stylometric software tonight, I am going to see if the AI agrees with me that the posts are authored by different people. I will report back. Again, I could totally be mistaken. I am usually pretty good at feeling when something is off though
I also felt that at 'some' parts too.
Again, I could be (and hope I am) wrong. @curie reviewers upvoted this author... which is a decent sign, although Curie reviewers are not in infallible. I plan on coming back to this author and doing a deeper dive when I have some time to see if I can't make a final determination. It might just be English as a second language that is throwing me off. I appreciate your hard work here. Just FYI I have family in town today through the weekend and won't be online much.