Not OP, but you can replicate probably very well by just copying any sentence from an SO question and pasting it into google. You will find duplicates. If not, try find a more unique sentence in that question/answer, especially with a weird way of speaking. In my example below, the tell was that legitimate NLP re-writes of the question didn't include "and do what ever you want", so including it found lots of clones.

They are being intelligent now and using NLP to mix-up the content, but it's very much the same question or answers, or just the answers, or some variation of the two, or made to look like a forum with SO comments as forum replies, etc. Most of it is non-nonsensical if you try understand it.

Example:

"What you can do is set the FormBorderStyle property to None and do what ever you want with the form using GDI" from https://stackoverflow.com/questions/11862315/changing-the-co...

Gives you:

    https://pretagteam.com/question/changing-the-color-of-the-title-bar-in-winform
    https://www.xsprogram.com/content/changing-the-color-of-the-title-bar-in-winform.html
    http://62.234.115.194/ask/111862315.html

There were a couple that I had no intention of clicking to confirm, though. And that IP one above I probably shouldn't have either.

    http://www.apes.today/post/11862315/1
    https://geek-qa.imtqy.com/questions/193507/index.html
    https://www.itdaan.com/blog/2012/08/07/b72deb841dfd594210520ce0edc22516.html
    https://stackqna.com/questions/11862315/changing-the-color-of-the-title-bar-in-winform
    https://www.extutorial.com/en/share/497449
    https://code-examples.net/en/q/b5012b
    https://csharp.developreference.com/article/24268263/Changing+the+color+of+the+title+bar+in+WinForm

That was just what I could glance from the preview and all on the first google hits page.

I 100% guarantee that if you wacked 95% of the above domains and forever banned whoever registered them legitimately from the web forever that you'd make the web a better place.