Technicalities.  Because technically he has not broken any rules.  In his posts he includes links to the articles he's copied, translated, and pasted.  Yeah, the wording of some of the posts made it sound like he wrote the articles, which is deceitful, in my opinion. 

Is that deceit intentional?  I don't know, but I don't like plagiarism.  It's theft, plain and simple.  It takes little to no effort to make it abundantly clear that you're quoting the work of others, yet it seems like Ratimov doesn't concern himself with giving others credit for their work.  I suspect that the amount of merit he's earned indicates that most people aren't aware the work he posts is not originally his.  I can't recall another member who's earned so much merit by quoting the work of others, and certainly not when it was clearly the work of others.

I don't care about the merit he's earned, the rank he's achieved, or who chooses to employ him, but this:
 

That's a good question.  I don't see how he's made himself trusted enough to be on DT1.  Most of his recent left-feedback is retaliating against those who've called him plagiarist, which is not how I believe the trust system should be used.