That's a very good article.
On no other site would anyone give a shit if the content was spun, because no one would be paying for it....on here, it matters.
But here's MY foolproof method of noticing spun content:

I READ IT!!!

yes, I know, but I think SO many people don't read what they upvote and I'm referring to whales too here.

SECOND: If I read smth and I'm unsure for various reasons(spidey sense we all have, I promise you) I ask a question in the comments. Have you ever seen any whale to comment something like " Can you provide any kind of proof that this is original content?' or something along those line?

Also, it's easy to spun generalities and bullshit. Whenever I see a general article, written from a general perspective - no soul, nothing to say "this is written by ME!" - i am suspicious. You should too, dear reader!

These 2 steps would prevent 99% of the spun content in my opinion, but it's hard work...