I can well understand your concerns. But I have no proof if it is plagiator or scammer. And have not enough time or tools to make a deep research.

If anyone can make a deeper research, and see if these articles have any copy-paste proof, as a plagiation job, I will appreciate.
And will well reward your efforts.

It should be done ASAP, before the post is expired, so I can remove my upvotes in time ( if I need to)

There is always a risk, that some trained, motivated plagiators will be smarter than you, will fool everyone, and get rewards which they do not deserve. We must live with this risk.

Those, who one day fail, and I get the evidence of my mistake (in promoting) - will learn how bad and hard TORUK can hit back, in revenge. :)