When someone points out a wrong, and someone else points out a different wrong of the same sort with the intent of making an argument around hypocrisy, that’s a whataboutism.
In this case it’s an article about Russia doing it, and a commenter essentially saying “what about when America did it?”
I ask again, what decision do they want us to make right now, in the current moment? We can’t go back in time and undo what we did. So what is that commenter’s proposal, what do they think would be the best path forward concerning RT, today?