Reviews: A Robust Non-Clairvoyant Dynamic Mechanism for Contextual Auctions

It is quite unclear, since in [Medina & Mohri, 2014], the benchmark is the best possible one, because it is equal exactly to the valuation of the buyer and, hence, generate the maximal revenue each round. So, even any dynamic pricing cannot provide higher revenue than this one. The same issue occurs in Lines 81-83. Comment after rebuttal: I got the answer in general. I hope, the authors will improve clearness in the lines that I have indicated above.