“Tags work a little differently than hashtags do on platforms like Instagram and X (formerly Twitter). When composing a Threads post, you start a tag by tapping the # symbol and then typing out your topic. But instead of being limited to just one word, you can type out a whole phrase (with spaces!) and add special characters, according to Mosseri. However, you can only make one tag per post.”
I wonder how the tags will work if they federate with ActivityPub.
As they haven’t said they aren’t coming to the Fediverse and if anything say they are still looking to Federate it’s still on-topic as of the moment but yes it feels like they are kicking the can down the road or have lost it completely and just don’t want to tell anyone yet.