First of all, there were FreeX article, it is reliable source. Second, FOSS needs its own guideline as shown in many discussions and opinions on specialists, no incompetent perverts that jack off on obsolete rules. Notability of FOSS can be seen from overall popularity and it is obvious for each IT-spec. FOSS popularity lives in the world of 0 and 1 and has no need to be proven on paper in the age of Internet. Also it has giant verifiability due to open source, so there is no need to insist on classical representation of reliable source as some glossy magazine.