If I comment in a sub that has since been set to private, can I not see my own comments on my own profile page? If so, do those comments not have an edit/delete button under them?
Yes, comments you made in private subs don't show in your comment history. I recently made a browser extension that deletes your entire reddit history and ran into this while testing.
Edit: Adding the link: https://chrome.google.com/webstore/detail/bulk-delete-reddit...