It's funny how partisans on the right often say this, and partisans on the left often say the same thing, with the sides reversed.
The fact is, HN has sizable and active contigents from all parts if the political spectrum, and partisan voting (up and down) comes from all sides.
Or maybe they are.
> Leftists aren't so keen on free speech anyway.
And many leftists would say the same thing about rightists, with the same amount of justification.
Both the right and left have large factions with little devotion to free speech beyond what agrees with them. And both have factions that view disagreement and criticism as suppression.