Well - the detraction is I spent about 15-20 minutes re-reading through your article, googling around, checking my system, checking apple review sites - trying

Well - the detraction is I spent about 15-20 minutes re-reading through your article, googling around, checking my system, checking apple review sites - trying to figure out what, exactly, it was that Mavericks was doing differently with keychain/private key integration. Might be worth editing the (really great) article so it doesn't appear that there is something new in Mavericks specifically.