Gotta love their explanation for why it's opt out by default:

https://bsky.app/profile/zachbussey.tos.gg/post/3msvufe7qks2...

> Now why is it not opt in? That's what everybody here is spamming in chat, I get it. Let me opt in rather than making me opt out. Well there's an honest answer and I think most of you can probably appreciate this. Like if it was opt in, nobody would opt in.