Thank you to the ever-reading Rick Krause, who forwarded to me this excellent review of Sloterdijk by Pieter Lemmens. An excerpt from his conclusion:

…Foams is written in a rich and playful style. His tone is jovial and detached, ironic yet joyful, reminiscent of a certain side of Friedrich Nietzsche. It also owes much to Diogenes. It is a far cry from anything considered as serious thought in the predominantly analytic world of Anglophone philosophy. Even among so-called continental philosophers, and in particular among his German academic colleagues, Sloterdijk remains a controversial, if not a vilified, figure, a status he has cultivated by calling himself a philosophical writer, a Schriftsteller. It is precisely in this lightness and deliberate antiseriousness that Sloterdijk is most subversive.