Default search is "by relevancy", which, empty, is identical to "newest first"

<https://answers.edge.launchpad.net/ubuntu> has "by relevancy" as its default sort order, but the default question listing is "newest first".

The same happens if you search "by relevancy" with no search text, e.g. just click the "Search" button on the project's main Answers page; it returns a list of questions newest first.

I discovered this quirk when searching to see if there was any way of listing which Ubuntu questions were most-frequently visited, because that would be a good gauge of which questions future versions of Ubuntu Help should cover. It would be super-awesome if an empty "by relevancy" (or "by relevance") search listed all the questions sorted by how often they're read by humans, rather than by when they were asked.