Such a poll would go against the site rules, and for good reason, but I sometimes conduct hidden polls by posting "libertarian" and "socialist" (I'm putting those in quotes because these terms have different meanings in the US than elsewhere) comments (using different accounts) on political threads and counting the upvotes. It might be surprising (but only for a split second) that the vast majority of HN users are progressive (in America: socialist/democrat), while free market believers/libertarians are a minority. It is by no means scientific, and possibly quite anecdotal, but also not surprising, that the free-market libertarians are among the younger members of this site (usually early twenties, judging by the information posted on user pages of "libertarian posters").
This is not surprising because HN is a community of mostly well educated people, which here, like elsewhere, is composed of left-leaning individuals. However, it is also true that the number of libertarians here, while still a relatively small minority, is larger than found in other communities of well educated people.
Have you also taken into account that most Americans that consider themselves democrat/liberal/progressive would be considered well to the right in most other countries represented on HN?
The American contingent really skews the numbers if you let people identify themselves.
You get a much clearer picture if you look at discussions around concrete issues, like government and regulation.
I'm not sure about that, I'm from the UK and most of my exposure to US culture comes from the internet or the media but I get the impression that there are simply more extremes of opinion in the US than there are here.
Your liberals are more progressive and your conservatives are more conservative, at least towards the fringes.
I think it would be much easier to find a consensus of opinion in the UK on most topics than it would be in the US.
It might be true that the political status quo (on many issues) in the US is further to the right than it is here, but that might be because progressives feel that they have to vote for the party that most closely represents their views and has a chance of being elected (presumably democrat) rather than a party that they necessarily agree with.
I think the UK is somewhat a special case among the Western European nations in this context as well. From a Finnish/Nordic perspective it seems that the US Democrats, on average, seem only a bit to the left of what would here be regarded as "center"; in some cases even to the right.
Bit of a me too comment, as in, that is what I was thinking as well - I have come to the judgment that the number of libertarians in HN is small though larger than other such communities. It makes you wonder.
This is not surprising because HN is a community of mostly well educated people, which here, like elsewhere, is composed of left-leaning individuals. However, it is also true that the number of libertarians here, while still a relatively small minority, is larger than found in other communities of well educated people.