It's not about a single statement, but about problems that can arise due to mis-communications and mis-understanding. My badly constructed phrases and limited vocabulary are a good example of that - often a native English speaker expresses and understands thoughts in a different way than non-native speakers, where their way of expression often varies according to their mother language (words used, phrase construction).
In other words: statements from non-native speakers should be taken with a grain of salt :-)