Actually, you are wrong.

The content in question that was posted by me was from public domain and unattributed because no attribution was found publically.

By going behind a paywall illegally, they THEMSELVES broke copyright law by accessing copyright material behind a paywall and without paying for it. Thus, they broke copyright law to try and prove that the content was copyright.

This is the equivalent of illegally spying on someone to prove they broke the law. They are not an authority of any type and no one from the platform gave them permission to do this.

They elected themselves as "policers" then accessed a platform illegally to use stolen data to prove their case. Smh, not too bright!