The meaning of silabbata-paramasa and freedom from this fetter?

Since often very curious ideas and means of excuses appear around the arguing with the means of "that's a fetter", my person thought it would be good if someone would have the skills and goodness toward fellows and behind followers to explain the meaning and whether a perception of it is used for the training or not so that it would not misinterpret the Sublime Buddha (meaning own ideas are nice but not really 'asked' for) *[Note that this isn't given for stacks exchange and other ways of silabbata-paramasa but for release]*