It's hard to tell by only watching television, but my impression of the audience is very, very positive. I was in Vancouver in 2010 and I think the crowd was much more indifferent to the guest athletes and other non-Canadian fans than the Russians are to non-Russians. Russia is a very open culture where hospitality and natural curiosity to others is part of their very soul. It's North Americans who claim to be hospitable and open, but in reality are rather ignorant and indifferent.
If you look for hostility and disrespect I heard that the soccer World Cup in Korea was by far the worst. So just wait for four more years and we will see....
You heard wrong about the World Cup. I was in Korea st the time, and as passionate and excited as the crowd was, they were extremely welcoming and gracious. Sports Illustrated even featured an article on how warm the Korean public was to foreign visitors. Also, the Korean crowd at the Grand Prix event a few years back were wildly pro-Yuna but never booed anyone or cheered for anyone's mistakes. In the end, they gave a warm ovation to the winner, Mao Asada.