In social networking websites, a "controlled" component, generated by content creators, must coexist with an "uncontrolled" component, that is generated by the users. Even if the latter is more difficult to control, it is the former that create more challenges in terms of l10n/i18n. The use of a crowdsourcing approach has proven successful for Facebook, but this was achieved thanks to the implementation of standard linguistic rules that are complex and detailed but, at the same time, easily understandable by the actors involved in the translation process.