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Threads deepens its ties to the open social web, aka the ‘fediverse’
(techcrunch.com)
A community dedicated to fediverse news and discussion.
Fediverse is a portmanteau of "federation" and "universe".
Getting started on Fediverse;
What I think or what they "may" do is irrelevant regarding public data. What matters is sending a clear signal what you are and are not okay with.
Whether you actively participate in helping them get your data or not might not effectively matter in them acquiring it, but it may heavily impact the fine they get for it afterwards. You might be okay with them getting your data for free, but I'm not, sweet summer child.