I’ve never heard a sound on that channel speaking anything other than Russian in my area (any area for that matter). Have never made a contact calling CQ either. That said, having an “official” frequency seems pointless. Just decide at a trips start what we will talk on and away we go. Too many good repeaters in my area to monitor when cruising locally and 146.46 seems to be monitoring dead air when I am traveling out of the area. I end up monitoring 146.520 when traveling and whatever my group is on. 146.520 is where I will tune for help when I need it and am running out of options which is why I in turn monitor it. Hoping others do to.
But, I’m a pretty green egg in the HAM world. Perhaps there’s more to it that I am unaware of? Always looking to learn.