On transparency (Question 2), I agree that the trend is irreversible in the direction of wider disclosure by Central Banks of their procedures. Transparency about goals and about methods can be beneficial to monetary policy because expectations are such an important channel of transmission.
Expectations about future policy and future inflation affect today’s decisions on wages and prices and those expectations depend on the economic agents’ view on future monetary policy. So, I agree with the author in most of the points he makes about these issues.