What forum are you talking about. All of Mastadon? Doesn't each instance have its own rules?
> As someone who'd consider themselves progressive by the yardstick of 10 years ago but not measured to the new progressives of today ...
> The New Left has become unrecognizable to me
That's an expected phenomenon. What was progressive yesterday becomes conservative today - think of women's rights, interracial marriage, etc. The same goes for 'who' was progressive.
When people are young, they challenge the corrupt system. As those changes are enacted, those young people grow older and become the system. Then a new generation sees that 'progress' of your youth as the old, corrupt, scelerotic system; they have nothing invested in your achievements; they see the system's flaws and push to change them.
The formerly-young-challengers, now old-system-members, say 'that's crazy, outlandish, outrageous, etc.' - exactly what was said to them when they were young.
Oh yes, I know, 'this time it's different'. 'These kids really are outrageous.' Those words are also exactly the same as before.
If you want to be progressive, you need to keep seeing the flaws, not accepting them, and keep pushing for change. The moment you stop, say 'far enough we've done a good job', you cease being progressive.