As such, the site founders took aliases from Larry Niven's novel Ringworld; Errera assumed the name "Louis Wu", after the novel's protagonist.
In Larry Niven's novel Ringworld, the Puppeteers' "Fleet of Worlds" is arranged in such a configuration (5 planets spaced at the points of a pentagon) which Niven calls a "Kemplerer rosette"; this (possibly intentional) misspelling (and misuse) is one possible source of this confusion.