I don't know reason why author made this translations, because it's very poor quality and absolutely doesn't useful. Also, this pages contains aggressive advertising (usually forces you to look 20 seconds video ad), also contains a lot of markup and CSS errors, broken links and so on.
Then, Dmitry Zajtcev has a very poor quality. I think he does it just for SEO rankings or something like that. Because his translations are very bad readable (similar to automatic) and contain many mistakes.