How many sites are needed for a surname to have its own sub-category in Personal Homepages? For instance, looking at Society: People: Personal Homepages: W, I observe that the Wongs got their own category, which, with 70 sites, is fair enough. But the Wiggins achieved it with only 3 sites; the Wyss with 2; the Whitts with 1; and most impressively, the Weiners, Warrs; and the Wiltshires with none at all. How many does it need? Or is it determined by the average quality of the sites (explaining the divide-by-zero cases)?
(The motivation for this question can be guessed from another thread.)
(The motivation for this question can be guessed from another thread.)