[kbart]

Well, if just after performance you told me: "wow, that was great", then the next time we met: "actually, you sucked guys" (or even worse, tell that behind my back), I would deem you liar and dishonest person. Constructive criticism, especially by close friends and family, is the best outcome imho, while an empty, meaningless praise only causes harm on the long run. I'm from Europe, so it must be a cultural difference.