Lair of the Beast easter egg

[DaryLDixon]

In the cave "Liar of the Beast" if you face the gates near the tractor and turn your camera to one of the walls inside, there is a sign in russian language, but written in latin "Rebyata, ne stoit vskrivat etu temu"

Anyone else saw that? Is there a way to open that gate, or something? Because I feel like that's a hint to open the gate, but I can't understand how

[FuBar]

first learn how to spell, it's "Lair" not "Liar"....lol