Oh dear, that will teach me to jump to conclusions without doing enough research. I only checked the post I merited.
The fact is long thread which focuses on bitcoin or altcoin discussions might come from articles by plagiarism.
It doesn't not right all the time, but during my time I experience in the forum, most of plagiarised threads concentrate on those sort of categories.
Personally, I will spend a little time to check whether that sort of thread plagiarised or not by using Google search.