The way I understood that (now deleted) post is that he claims that only 10% of the overall bitcointalk content is original and rest is copy/paste of someone else's material and not him admitting that only 10% of his posts are original, in a way to justify his extensive copypasting as according to him, everyone is doing it.
This is subjective way of looking at the post. However, either way of understanding it still incriminates Ratimov of plagiarism:
1. He self admits directly that he copy-pastes / plagiarizes in 90% of his content => self admitted plagiarism.
2. "He claims that only 10% of the
overall bitcointalk content is original and rest is copy/paste of someone else's material and not him admitting that only 10% of
his posts are original, in a way to justify his extensive copypasting as according to him, everyone is doing it." -- since
everyone is doing it, then he does it too, since "everyone" includes him as well => self admitted plagiarism.