Forum sort order descending on first click

When clicking on the titles of the Created and replies columns in the forums, the first click sorts ascending, with the oldest on top.

That means I have to load twice very close to each and every time I want to re-sort the list. I assume that most others also mostly want decending order, and hence are doing the same every time.

This must put quite unnecessary strain on the server in addition to being slightly annoying. (Drupal.org certainly could do with anything that improves performance these fast-growing days...)