Marketplace sorting

I wanted to suggest that the default sorting results for the marketplace that lists people by their skills, be sorted by last update and not by name.
Currently people who makeup a name that starts with a number get top billing. Switching it to sort by date will constantly change the people who get listed on the first page that pops up.

Also I think changing the filters to sort by last updated is broken. I've tried clicking on column header "Updated" on the Developer search results page and it gives me a screen saying


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