Comparing the scripted, very serious banter they use in E3 and other stage demos to real life. This is quite good and funny. On the contrary sometimes you get racial, homophobic slurs, random music playing in backround, baby crying, etc etc when playing with randoms online.
Source: https://www.youtube.com/watch?v=RL6SfE4efy0 via http://www.neogaf.com/forum/showthread.php?t=1179192