Discord calls contribute to (my) DDAs much as I like NRs and other more traditional media, I personally find Discord calls to be a refreshing way to interact with the CEO.
Granted, these tend to be rather lightly attended but, for those who do, they offer an open forum to respond to questions which would - in many cases - not be addressed through other forums.
In short, despite its shortfalls, for me, Discord offers an interesting medium through which to complete my DD. Discussions (at least the useful ones) generated by those calls and share on this board, often help pick up on nuances which I may not have picked up on - be it only by not taking the time to repeatedly listen to the calls. As the saying goes "Two heads are better than one".
So, I'm very much in favour of more effective media (reaching out to a broader set of potential investors) BUT I remain very supportive of Discord going ahead and truly hope the initiative won't be dropped, simply because a few may feel that it's useless.
My two cents