That doesn't seem quite true... the first comment here links to open pocket which links to a discussion in a github ticket with the previously closed source poc

That doesn't seem quite true... the first comment here links to open pocket which links to a discussion in a github ticket with the previously closed source pocket team where they note they are a small team and just have not had a lot of bandwidth to cleanup the formerly closed source server. That discussion was last summer. https://github.com/Pocket/extension-save-to-pocket/issues/75#issuecomment-655311178 https://github.com/Pocket/extension-save-to-pocket/issues/75... This comment in particular.