Alot of these discussions have come up in Nostr Nests and Corny Chat over the past 4 to 6 months. Mostly in adhoc fashion interjected in other random conversation. Various issues come up weekly if not daily. Theres been no concrete "solutions" to privacy concerns.
From a textual standpoint (which can be helpful for search, newcomers, posterity, etc), places like reddit are a cesspitt for discussing anything Bitcoin. Using nostr for such is wrought with high friction for communities (bad nostr design), and lost in kind 1s that arent yet searchable. The dev mailing list and github is suitable to some degree, but not for those that cant respect others, and this happens often enough that its practically irresponsible to direct people to them who would not find them on their own. That leaves Bitcoin Talk which is largely defunct.