Do you mean as a columnist/tweeter or in his work as a profesisonal economist in academia, textbooks etc?
Judged by peers he's still quite valued eg by this ranking: https://ideas.repec.org/top/top.person.all.html (rank 36/3255) - but of course in academic research you don't necessarily aim to be right as often as possible, it's a search and exploration of ideas and testing what works.