There really needs to be a publicly searchable archive of public Discord server chat logs.
Relevant conversations moving off Discord is what's really needed and where I think effort is better spent though.
An appropriate indexer would obviously distinguish between those and actual semi-private chats (where I assume backlash came from). And would probably get shut down after a while anyway either by being banned for ToS violation or the maintainer quitting because maintaining such project gets grating enough anyway at some point.