I also looked at a few random pages of the two threads I can see, and it looks like there is little discussion among the thread participants in both of those threads, which helps allow plagiarized content to not stand out as much (it would be difficult to plagiarize content that is part of a conversation). A solution might be to disallow/lock threads in which it is apparent there is not much conversation between thread participants.
Yes, plagiarizing content related to a topic is a pretty difficult job, he would have to go through a hell lot of Russian websites, and find a related content to the topic on which he would be posting or else an off-topic post can clearly rise suspicion.
I don't understand what does the operator of this accounts earn from the copy-paste of this posts. He is using lower level accounts which obviously don't earn much, also he is not wearing any signature that takes him to zero income.
Are they spamming the forum for free?
