text: I think that people sometimes ask for "Christians only" (or whatever group they're appealing to for answers) because they want responses from people who may be knowledgeable about the topic at hand from an insider's perspective. For instance, I've noticed that when people ask questions about Scientology, Satanism, the Church of Jesus Christ of Latter-Day Saints, or Jehovah's Witnesses, many rude remarks are made by those not involved in the organization. So they might say "Jehovah's Witnesses ONLY" to try to get an answer from someone who understands the theological issues unique to their belief system. Or if someone's contemplating a religious conversion, they might want information from someone who's actually a member of that particular belief group, not some outsider who's just engaging in idle speculation. \n\nHaving said that, though, diversity is pretty interesting, and the wide array of responses on this site is part of what keeps me coming back.