That's because many of us are former career military people ourselves,and realize what a heavy-duty "hero badge" the MOH truly is. We don't like to see the term "MOH" thrown around loosely.
Having said that,I personally hold all winners of the various service crosses to the same respect I show actual MOH winners. I know that the usual route to getting one of these awards is to have your MOH award denied. It's a rare thing to see somebody wearing one of these,and it takes a rare amount of courage and determination to earn one.