yes, a joke. I don't know why the person who intervened didn't ask the OP for the cylinder pressure. If I were the OP, I'd certainly be using a very clear hand signal to my "rescuer."Clearly this was a joke, but also was in reference to post I was replying to and them not wanting random rendering unasked for and unwanted "aid".
However it also appears that Mares AI transmitters already do this.