I'd not heard of carbon shaming. I suppose the serious aspect of that is attitudes do change over time particularly between different generations. Actually one thing that's really surprised me is the speed and size of the backlash against polymers and the fast reaction by some Firms to this. If you were paying attention at school then it was pretty obvious than man had created something with a few nifty catalysts that simply didn't exist in nature and was highly problematic for disposal and recycling.
Now, If I could hire a fat-shamer to follow me around that would be a useful service for a healthier lifestyle with a bit less consumption...