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Site works fine without JS, and I can do all of those things too.

Although all those extra parameters in the URL are a little odd.

For what its worth, the page works fine without all the parameters. Why they are in the submitted link, I don't know.

The utm_* parameters tend to be used for source tracking; the important ones here being "content" and "campaign".

Of course, this particular link doesn't refer to HN in its campaign code, so their statistics are going to get a little confused.