My thoughts, briefly.
This green neo-puritanism that poster refers to is anything he doesn't agree with environmental.
HOWEVER... 1) there is massive work that needs to be done environmentally.
2) we cannot rely on big business to do anything apart from greenwash.
3) if politicians can use green issues as an excuse to increase taxes and social control they will.
4) knowing what's best for people is what people are good at.
5) puritanism has always been an expression used to attack anyone who takes a principaled stance on anything that someone else doesn't agree with, so is a loaded bullshit term. if you have a case, argue it, don't dismiss something as puritanism and hope that by labelling it as such others will think it's bad.
6) so, if the problems of environmental damage will not be solved by taxation and guilt-tripping the lower classes, and won't be solved by big business cleaning up after itself, what will it be solved by?
7) however, when the aims of the environmental left are met (for the wrong reasons) by the greenwash and social control brigade, should be oppose them (as anti-capitalists / libertarians / socialists) or support them (as environmentalists) - for example lowering emissions, car free zones etc etc, banning smoking in the workplace to protect non-smokers are all issues that have divided urbanites.
8) i'm going home, i'm tired and i need a kip. i think some of that might have made sense.