Thank you so much

When I was young in the early 1960s, if something was wonderful, we would have said it was “super”. Later, something super was described as “fab”. Moving closer to the present, something fab became described as “wicked”. Now, something wicked has become “awesome”, an overused word which I do not consider to be super in any way. In fact, it is used so much that I regard it as being wicked in the old sense of that word.

“THANK YOU SO MUCH” is also currently in frequent use. Call me a “fuddy duddy” if you wish, but I have problems with this expression. I have no difficulty with people expressing gratitude, but how much is “so much”? What is wrong with just “thanks” or “Thank you very much”?