I think that guy's confused about your motivation to build hours. Most people go to the US to build time to get their CPL back in Europe. Those are the ones you pay for. Some people choose to stay and build time afterwards as a flight instructor, at which point the money starts flowing the other way. There are no free hours before CFI. Unless you can legally work for an airline in the US there's no point in getting single engine time. (In the US you need 1500 hours to work for an airline which can be mostly single engine, in the EU you only need 200 hours. More hours won't help you much unfortunately although a lot of people seem to think they will.)