aob, I thought sharing all of those things were not allowed.
Really, the issue is with teenagers. Adults (generally) know what is safe to share and what is not. But teenagers rarely think things through before posting (if you don’t believe me, check a random teenager’s profile on a social site). So for the sake of protecting young people from damaging themselves (and as we know, the CR is/was dominated by teens) the rules are not to say who you are, or where you will be going, etc. A very good rule, and it’s a credit to the mods who enforce it well.