@johnjhorton I once helped someone who was frustrated that a university required a "wet" signature (not digital sig) on a reimbursement. I showed him the E-sign Act, a 2000 law saying digital signatures have the same effect as paper sigs. University admins had to relent. Fun times.
@JDHamkins I think an adjectival hyphenation rule would be something like 'one must write "high-flying", not "highflying"'. (Was 'a adjectival-hyphen rule' a typo? I'd say 'an', not 'a'.)