The paywall is different from what is mentioned here. Paywalls should disappear.

Regardless of the existence or not of a paywall, most journals do not publish the referee reports along with the paper. Which is a pity, because often in the referee reports (and the answers to the referees), there is a lot of information that the public/readers could benefit from. Authors often give satisfactory answers to the referees to a concern raised by them, but it does not always make its way into the updated version of the manuscript. And so, readers who have the same concern as the referee do not have access to these same clarifications.