Yes, if lemmy.sdf.org defederates from the Threads server, you wouldn’t be able to follow Threads users using your SDF account.

I think Threads is Mastodon-like, even with federation it’s not currently easy for the two to interoperate. Threads users could subscribe to a community and post replies, but how I’ve seen it on my Mastodon account is that it’s super hard to keep track of discussion.

Personally, I like the “wait and see, defederate after first offense” approach that some are taking.

The lemmy.world instance had been having trouble, could be a problem on their side.

SDF has next cloud? I haven’t seen that yet

Harstem is wonderful!