Dufffield used to say nice things about ring signatures and the desirability of using them to improve Dash's "bad crypto."
But protecting the instamine was apparently more important than fixing the broken "privacy theater" of Darksend (aka broken, snake oil rip-off cargo cult version of CoinJoin).
Ata Boy!! There you go, that must of been like holding on to a bursting bladder on a really, really long car journey with absolutely nowhere to stop for wee wees. That must feel much better!