[moravak1984]

The copy on the main page gives a first clue. "A daily reading club for language learners" available on 7 languages, on a .club domain...

Now, look at the number of books on each language. Does it sound reasonable that a no-name startup with no contact details (except an email to an aktivlang.com domain that redirects to storica.club) will invest in a serious effort to human-translate and adapt that many books to language learners, without anyone noticing?

I'm not going to argue about the writing style because we know it is an arms race. But look at the underlying business, that business would not exist without AI generated content.

[fractallyte]

Many (human) translators use DeepL (https://www.deepl.com) in their daily jobs. It employs deep learning (hence the name), but not necessarily LLMs. And it's way better than Google Translate for many languages.

So this offers an alternative, legitimate, route to exactly the website content you're suspicious of.