well I guess it depends on the situation, sometimes, when you
affect an accent, it's not because you're trying to be a "fake ang
moh" or something, but you're simply trying to be understood ...
pure, unadulterated Singlish will NOT fly in many places, they
simply can't understand you .... say when you're talking down a
phone or something, you think it'll come through ? 
on the other hand though, if you keng an accent in front of or
among fellow singaporeans, then it's wayang, pure and simple ...
