@Gargron
But, given that a user has to view a Threads post before blocking the domain, are they not giving Threads permission to collect information about that user, according to Threads Ts&Cs?
Mastodon has spent a lot of effort over the last couple of years walking back some weird early decisions. Don't let this be another one.
Further, as one cannot pre-emptively block a domain without viewing a post from that domain, one accepts Threads terms before they can be blocked.