YMMV

I notice this topic popping up often lately with opinions polarized into two extremes. In one camp, the bros feel that YMMV is bullshit and just an excuse for poor performance. Or in worst case, an escape clause for misleading advertisement. In the other camp, there are bros that feel it is understandable for an MM to have ups and downs in mood, energy levels, etc. These bros sympathize with the MM that sometimes, especially for those new to business, the service you get really depends on your personal connection with them, and many other factors. Personally, I accept YMMV to a certain extent. I believe that MMs are humans too, and sometimes performance can suffer from a variety of legitimate reasons. Especially for the young and inexperienced. However, there are also times when I think YMMV just gets used as a lame excuse. I am interested in hearing opinions from you bros. Without naming any specific names. What do you think when you hear the term YMMV?