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The reason the admins can't guarantee a complete sign-off on player-invented lore - and the reason they give that disclaimer - is probably because they want to avoid canonizing or giving sanction to things like 'Humans have bubblegum pink hair' or 'Imps reproduce by asexual division' or 'all Trolls do booty dancing as a mating ritual' or similar. Sometimes, people do things that are silly or would not work if they were generalized to the entire race. It's the admin's sandbox, and they have the authority to make those calls if they want to.I'm pretty much okay with all three of those examples, by the way.