Discord is also an especially bad choice, at least for two reasons: it is not searchable, and everything might be gone at any point for any reason, when discord or its automated algorithms feel like it.
https://www.google.com/search?q=site%3Aansweroverflow.com+c%...
https://support.discord.com/hc/en-us/articles/6208479917079-...
Minecraft mod? "Find us on Discord!"
Hot new indie game? "Find us on Discord!"
Interesting little open source project? "Find us on Discord!"
30 year old forum shutting down? "Find us on Discord!"