This could be a big deal, but the chain of communication here is convoluted. There is no proof here that it is
-the real Guccifer
-that Guccifer was Wikileaks intermediary source
-that Guccifer obtained it from Rich
etc.
Something else is required, such as a cover email or such from Rich to whomever.
We've had nearly a year of investigation (according to Comey) and Trump's name and reputation dragged through the mud for months by the media with innuendo that he collaborated with Russia to cheat in the election. Did or do they have such a smoking gun?
We know the answer to that. This is as substantive as anything they have vis a vis Trump and Russian hacking.