if every implementor were so disciplined it would not be so bad but, I fear, far too often an implementor views a SHOULD as something that is not important enough to be a MUST so I do not have to worry about it at least the document author should say what could go wrong if its not done Scott ps document authors should take to heart the following from 2119 6. Guidance in the use of these Imperatives Imperatives of the type defined in this memo must be used with care and sparingly. In particular, they MUST only be used where it is actually required for interoperation or to limit behavior which has potential for causing harm (e.g., limiting retransmisssions) For example, they must not be used to try to impose a particular method on implementors where the method is not required for interoperability.
