Since the manifesto advocated taking down industrial society and that hasn't been done, it's hard to judge the productivity of the thing while the outcome isn't known I guess.
He's had a huge societal impact: https://en.wikipedia.org/wiki/Degrowth. The lack of apparent "productivity" is caused by forces beyond anyone's control (nature of market economies, etc.)
Like primarily HN, the only place I've ever heard people speak positively of it. Amazing how frequently this comes up here too, y'all have to be the guy's biggest remaining fanbase at this point.
I have a feeling that most people who think positively about it also know that there's not much point by definition in talking about it in mainstream society since it is fundamentally incompatible with modern society itself.
