I just followed my Mastodon profile from here. Very cool.
It doesn't actually show posts yet. But maybe these things will interconnect more seamlessly.
I've been having good conversations on Mastodon all day, and it would be cool for people here to be able to join them from here. Hopefully soon they will.
https://www.threads.net/fediverse_profile/davidaugust@mastodon.online
@davidaugust@threads.net @davidaugust@mastodon.online tbh didn't realise you could
@HarpSong I think it is relatively new, as I had tried before and had no luck with it.
It seems to be a new thing as of this month to be able to follow a Threads account from the fediverse: https://lifehacker.com/tech/you-can-now-follow-mastodon-users-on-threads-sort-of
@davidaugust may try it as I have a threads also 
@HarpSong cool!
So far, at least for me, it seems my replies to other Threads users who have turned on fediverse sharing are all that is populating of my profile here on Mastodon on the Threads interface.
@davidaugust I have fediverse sharing on if you see HarpSiren that's also me