there might also be an element of countersignaling [http://en.wikipedia.org/wiki/Countersignaling http://en.wikipedia.org/wiki/Countersignaling] involved - the

there might also be an element of countersignaling [http://en.wikipedia.org/wiki/Countersignaling http://en.wikipedia.org/wiki/Countersignaling] involved - the real experts prove that they are not "nervous middle classes" by actively being nicer.