The Searchlight Digital blog has a detailed analysis of three weeks of Sphinn frontpage success. The analysis takes a look at the top contributor and the categories in which the stories became popular.

From looking at that data, the conclusion (besides being a power user) is obvious:

Well, that may be true, but the Sphinn discussion says that the other sections (e.g. Usability) have less submissions overall so there’s a higher percent change that the usability stories will frontpage versus a SEO submission (among submissions in the same category). At the same time, those topics don’t have submissions in them because there’s a lot less interest compared to more general topics.

Forum discussion continues at Sphinn.