Without a doubt, international spotting has caused a level of awareness of the dx activity which allows more stations to get there. It's a two edged sword, though. More people know, more people show up at once...pileups are more difficult for the guy on the other side. Of greater concern is that many hams think they should CALL the dx, just because they hear a whisper of him in there, and know the call from packet. A great many people..particularly on 40 80 and 160...can be heard calling when the dx is transmitting. They obviously can't hear the guy! 40 may be the worst, because you can hear a station weakly, with a low dipole....but you're probably 40 dB (that's 10,000 times) weaker than the stations HE can hear. On balance, it still pays to tune the bands, be there at the right time, and have low angle antennas. I think there are more stations which are better equipped...particularly on 40...than there were 10 years ago. A KW and elevated GP doesn't quite cut it on the LP these days. I find myself waiting in line behind more guys with beams than previously.