This has been a common practice of account farmers for a number of years. Basically, they copy posts made earlier in the thread, because I assume they want it to appear on topic, and less likely to be reported. However, whenever you see this sort of stuff just report it, and it will be dealt with accordingly.
I did report it and the outcome was that my posts showing that the culprit/farmers copied my post from Discord was deleted. Their posts still remain. Is that what you are referring to by "dealt with accordingly?"
I am still very new to bitcointalk even though my account is over a year old. I recently found out what a useful resource this forum can be. I now understand the rules, how the rankings and merit work. Still a little fuzzy on the trust thing, but rule 33 on unofficial rules I found here
https://bitcointalk.org/index.php?topic=703657.0Says no plagiarism and the only detectable outcome of my report was the deletion of my post showing the proof and calling out the culprit!
I completely understand not wanting to give a false sense of security of banning the sale of farmed accounts because it is impossible to enforce, but rule 33 is enforceable.
Perhaps the moderator took too quick a glance at it. I don't know but what to do now?