First off, you can only host Confluence Server.
Second, regardless of the hosting, users can comment on attachments (if you've given them Comments permission), and they can download attachments and mark them up, and if you've given the users Attachments Add permission, they can add them back in.
Do you use templates with Confluence? Take part in a remote 1-hr workshop. You'll receive USD $100 for your time! We're looking for people to participate in a remote 1-hr workshop...
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Connect with like-minded Atlassian users at free events near you!
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