The Ars article is at least very transparent about its conclusions and what evidence they're based on.

https://arstechnica.com/information-technology/2016/06/gucci...

"We still don't know who he is or whether he works for the Russian government, but one thing is for sure: Guccifer 2.0—the nom de guerre of the person claiming he hacked the Democratic National Committee and published hundreds of pages that appeared to prove it—left behind fingerprints implicating a Russian-speaking person with a nostalgia for the country's lost Soviet era."

I never really got this argument. If someone embedded the username "J Edgar Hoover" in some documents, would we make the assumption that they pined for a return to cold war era FBI control over politics, or that they were just trolling? Dzerzhinsky was basically J Edgar's counterpoint in the east.

For the complete analogy, it should be the pinning of CIA control over politics based on Edgar Hoover's name because the GRU, which is accused of this operation is the military intelligence and Dzerzhinsky is the founder of NKVD/KGB/FSB - an FBI+DHS equivalent.