Sometimes I feel like certain questions may be unanswerable, such as:
Facing Yerushalaim during Kaddish (especially before I revised it)
They are asking for sources that possibly don't exist, but you generally can't prove that a source for something doesn't exist (unless you answer something along the lines of "I went through Kol HatTorah Kulah and never saw anything about this"). Should we have some sort of policy for this?