I beg your pardon? This kind of language is prevalent in the writing of US/English teens and young people. Absolutely nothing "Russian" specific about it.
Since it says "thanks to PoTe for fixing my terrible english" it sounds like English might not be the author's first language. Perhaps the impact of those words isn't as negative for the author.
I think the article would have been better without them, but that didn't get in the way of my appreciation for its technical content.