No. It. Shouldn't.
Features, especially those related to privacy and/or security, should *always* be opt-in, not opt-out. Opt-out is the cynical approach crapholes like Google, Meta, and X use to sneak their antisocial features into others' experiences.
I applaud @dansup for doing the principled thing. It's refreshing in the tide of disappointment I'm getting from other fediverse instances.