We know from the Subpoena case that he got discovery from her already, among which was a supposed reddit mod promoting the market replacement community watch parties, scheduled for the launch of the Countdown Episode and the Nuke.
More discovery might have already happened, but I'd say he already got what he needed from both Denim in discovery and Kaceytron settling to make a strong showing in the Subpoena case that his copyright claim has merit, based on which the Motion to Quash should be denied and the subpoena granted.