This ^
I've seen this thread sooo many times now since we first made the networks popular with Speed Rank, also Cutts has done these stupid vauge tweets in the past too and each time he does this shit he gets exactly the reaction he wants - threads, second guessing and panic... All part of the G propaganda machine.
I know first hand Google targets sape they take down sites all the time but it continues to grow so continues to work its been like this since the beginning thus replacing dropped links is a weekly routine. These messages have also been handed out to sites without Russian links and sites with them, heck didn't they send the BBC one of these a wile back and there was an uproar about it.
crusher hit the nail on the head and a few others here too nailed it, if your going to fire a load of Russian links at a site, cross your pretty little fingers and hope for magic then forget it, it will be short lived and your inviting a manual penalty from the offset! Those days are gone now they have been gone for some time tbf because Google is now well aware of the networks so has obviously set up some flags, If you have a decent enough link profile before hand and you continue to build other links wile then dripping your Russian links then you will be golden, its really simple - avoid raising any red flags like "an influx of just high pr links to a 0 link site" which would result in a manual review.