There was a bit of discussion recently regarding the question
centering around whether it is acceptable for non-pros and non-academic users to ask for help finding data that is easily obtainable by a pro or academic using standard data sources (e.g. Bloomberg, FactSet). I recommend that henceforth all but the most esoteric of data questions, which even a professional would potentially find difficult (and even with access to professional data sources), be considered off-topic.
Data questions are invariably asked by new and/or low-rep users, and seem to be little more than a nuisance and distraction from the overall goal of this site of providing a forum for experts. In any case the vast majority of these users' questions can already be answered by viewing the data wiki, and the rest are probably not available for free.
A brief clarification: Questions about where to find unusual data that is not easily obtainable via the major professional services, and for which one may need to pay to obtain, remain acceptable.