They have, to a certain extend, gone out of control, I agree. On the other hand, the level of service and quality of products in the US is getting so bad, that I barely can blame the people complaining...

There isn't a week that passes by, where something that you have bought does not work. Bring it for repair with warranty and most of the time you get just a surly response. No one is responsible, it would be too costly, it is too old, why don't you get a new one? This article is not made any more and the litany can go on.

Airlines are even worse. So to say no customer service whatsoever. Be it AA, DL or BA. It is a worldwide sickness in the flying industry, usually due to mismanagement, investitions done at the wrong places, etc.

Where I am not tolerant of complaints, unless the food is really unedible, is in restaurants: When I am back in the US, I always feel at home as soon as I get into a restaurant. 99% of the time the reception is very friendly, the service fast and the food good. If a mistake is being made I tend to be tolerant. with the wages they earn, you cannot expect service personnel with a desk full of diplomas... In the case of restaurant service, Europe has a lot to learn.

As far as hotels are concerned, I always fill the comment folder and I never forget to compliment what was good. As a result, I have had lots of pleasant surprises when returning.