Now it is one of the most privacy-hostile AND preservation-hostile platforms around.
Realistically, once everything was up and running, and they had moved their DB over to their current platform [1], someone should have taken the keys away from them and just said "Discord is done, it's complete". We likely wouldn't be having this much of a problem with useful information being hidden away behind Discord server invite URLs.
[1] https://discord.com/blog/how-discord-stores-trillions-of-mes...
Now they seem to be leaning into being Slack (notice that you can switch accounts, so your coworkers don't know you're xXxedgygamer69xXx or whatever.)
My takeaway is to always be a little scared about accepting investments. Your investors will make you hire people, who will want to work on something. The end result is a Frankenstein's Monster of a product.
Point being: different needs require different tools. Current trend is doing everything in closed, ephemeral groups.
Discord started as a way for gamers to chat with one another. Initially the developers even wanted to sell games directly from the platform [1].
I think it would be incorrect to position Discord as a privacy-oriented platform when the desktop client needs to be run in a sandbox because there's no real way to disable data collection.
1. https://www.pcgamer.com/the-discord-game-store-is-now-open/
Discord came about because all the instant messaging services (eg: AIM, MSN) had recently died, Skype was hot flaming gasoline garbage, Teamspeak and Ventrilo were tedious and expensive (for gamers), and otherwise there were no other means of reliable, easy, free, convenient means of voice communications.
Discord was really the best place to hang out with your friends outside of games. Social media was too distant and Steam friends didnt do enough. The old IRC chatroom / Discord format with voice comms and screen sharing is THE way to relate to friends online now.
Discord start as "your private place for your friends to talk" during a time where there were a lot of privacy issues with other communication methods.
Then as it grew beyond this scope of being a private place for friends, it would have been good for indexing to be added but indexing a normal text channel is really hard since you don't know where the conversation starts / stops to submit to a sitemap.
Now we've got large public communities and forum channels so it's possible they roll out their own version soon, but it does still slightly go against how their product was originally created so there may be some hesitation with adding it due to not knowing what the community reaction will be like.