I think another thing to take into account is geography. My impression is that there are many international readers that would not consider jobs inside the US.

I think another thing to take into account is geography. My impression is that there are many international readers that would not consider jobs inside the US. I know there are international job postings as well, but (and I may be wrong) I don't see people moving jobs across countries unless they were approached more personally (or vice versa: they would not necessarily approach a country switching job posting based on a HN thread).