In general, I never quite could figure out Guccifer 2.0. It seemed like it was multiple people, just based on going from terribly broken English to fluent within the same paragraph. Which would be consistent with this part of the story
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Sometime after its hasty launch, the Guccifer persona was handed off to a more experienced GRU officer, according to a source familiar with the matter. The timing of that handoff is unclear, but Guccifer 2.0’s last blog post, from Jan. 12, 2017, evinced a far greater command of English that the persona’s earlier efforts.
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> Do you retract your statement?
Not yet. I'd want wait and see what happens with this one. There was another similar story of a written confession from someone in jail who claimed they were order to hack the DNC. http://www.newsweek.com/russian-hacker-stealing-clintons-ema... that one says it was FSB not GRU but they probably work together. I haven't heard much since.