He deleted his own topic, my assumption is he want to get rid from users who say he's a plagiarist or he use google translate to write that? not really sure, but something like that.
This is common practice of Ratimov. He always tries to bury any evidence incriminating him. He deleted all the posts from the topic where he was hunting airfinex, after airfinex exposed his plagiarism; he deleted all his posts from AOBT thread where he was insulting all translators for incompetence and me, in particular, swearing about my family; he deleted also all his posts from this topic, where he was derailing the thread, hoping to distract users' attention from OP's content; he usually deletes also all his negative feedbacks which are baseless and contain only insults, after DT eyes are on him and so on. And, probably, he deleted dozens of other posts which contained evidence incriminating his Trust abuses or his plagiarism, in his futile attempts to cover his misery.
I already
explained all these here.