It's not an internet thing, "Ph" is pronounced like F almost everywhere in English, e.g. "Gopher" or "Phone". It makes little sense to transliterate a non "F" s

It's not an internet thing, "Ph" is pronounced like F almost everywhere in English, e.g. "Gopher" or "Phone". It makes little sense to transliterate a non "F" sound to Ph. ( And apparently this practice has roots from the even older transliteration of Phi )