Originally Posted by
RaleighSport
This thread makes me feel young.. so very very very young. I think you all are misreading the choice of words by these "youths" or whatever you contakerous geezers are calling them

I often respond to thank you with no problem, because for my generation and the ones younger.. it is equivalent to saying you're welcome seemingly in a more familiar less formal way..
No, it isn't equivalent to "you're welcome".
"No problem" or "not a problem" suggests to the customer that if it were a problem, you wouldn't have helped them at all. Those phrases tell your customer that, from your perspective, the relationship is all about what is best for you and not them.
Again, it's really irritating to have to explain this.