> It surprises me that so many people are outraged by a Chrome extension that highlights names - and does nothing more as far as I know
Nothing more as of now but you should see the support for it on twitter. This rationale is similar to Nothing to hide argument[1]. Path to dystopian future is paved with good intentions. And maintaining a naughty list is definitely not in good intentions.
> and wanting to see everyone with progressive politics purged from free software entirely
Where are you getting this from? Absolutely no one suggested that.
> The hypocrisy and cognitive dissonance among Stallman's supporters
I am not a Stallman supporter, fwiw.