Given the fact that Mueller's let off every single "plotter" with a slap on the wrist at best (Papasmurf just finished his 14-day prison sentence, for example), that Trump's sanctioned Russia probably a dozen times since the election, and gone well out of his way to make life a living Hell for all of Russia's allies,
and that we beat the Hell out of Russian "mercenaries" to the tune of 300+ casualties at dier ez-Zor in the span of a few hours: If they're not already convinced that all of it's absolute garbage, I can't see the point in bothering.
Russia's profited absolutely nothing since Trump took office, and if they want to plug their ears and cover their eyes, go for it. Reality's only to get more and more confusing for them in the coming days, though. The investigations are all finished now, and yesterday we started to see the first signals that the
prosecution phase is going to be heating up, soon.