There has always been an ongoing problem between acknowledgment information and giving permission or saying they would act on the information.
In the Navy, long ago, they developed the habit of repeating an order then saying, AYE AYE SIR. For example, if the Captain said, "Turn right to heading 270 degrees," the helmsman would say, "Turn right to heading 270 degrees, AYE AYE SIR" In that way the person sending the information would know it was understood and the person would act on it.
In the early days of the radio, the same problem arose. So the Army would say ROGER when they got information and WILCO when they would act on that information. For example, the Commander would say "Advance and attack" and the receiver of the message would say ROGER WILCO meaning he received the information and he WILL COMPLY.
Then it popped up with NASA. They would tell the astronaut to check something and he would say OK. But was it OK he would check it or he checked it and it is OK? So they started saying....That's...... A..... OK.. meaning he is checking it and it is OK.....
The failure to understand the difference between simple acknowledgment of something vs an affirmative or giving permissions has caused problems throughout history.
The biggest air crash in history, in which two 747 airlines collided on the runway in the Canary Islands. The pilot of the Lufthansa plane had learned English in Europe, mainly England and the northern part of the USA. In those areas, people would acknowledge stuff by saying YES or SURE or UH HUH. The Air Traffic Controller who was Hispanic learned English in Spain and the southern part of the use. In the southern part of the USA, people use OK to mean they heard what you said, but not necessarily giving permission.
So the Lufthansa pilot got to the end of the runway and radioed that he was at the end of the runway and ready to take off. The Air Traffic Controller radioed back OK and the Lufthansa pilot took that as permission to take off. He did, and the accident happened.
Never knock someone when they are trying to make sure what you mean when you respond to their comment.