Yes, but I feel like the telegram channel is trolling based on that fact.
Is there any basis for these marks? Is it a common military practice? How was this done before internet existed? I just can’t understand what’s the point? What do you gain my marking trees and 10x10 meter flat lands? Can’t you just figure that out from a topological map and google earth? Russia probably still has all of the maps from the soviet times. Plus they can take pics from the satellite or planes.