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Privacy-Focused Proton Mail Aids FBI in Uncovering ‘Stop Cop City’ Protester’s True Identity
(www.gadgetreview.com)
This is a most excellent place for technology news and articles.
Depending on how you register the domain, there are some registrars that require no info at all. One of those paid with Monero creates no links to your identity.
But yes, self-hosting does not shield you from court orders. If they find you they can still access your shit, depending on how much your country's infosec police gives a shit and/or how closely they cooperate with US agencies.