Over the last decade, Discord has become the de facto community space for gaming, and there are a lot of huge servers out there that you can find by scrolling through its public servers page. But starting on November 16, some messages in these huge servers will be viewable from Google.
I was actually opted out by default. I opted in, I think it’s a good feature and it seems well implemented as well - your username will not show, only your message. Also only select channels opted in by server admins will show up in searches, which is probably the best way to go about it. I don’t exactly care for everyone’s “general” chats to become indexable, but I’d like not to open Discord just to look up some techy stuff.