When a user submits feedback from the frontend with the "Submit anonymously" checkbox checked, the backend correctly receives isAnonymous: true. However, the logged-in user's userId is still being saved in the MongoDB document, which violates user privacy and ignores the anonymous flag.

When a user submits feedback from the frontend with the "Submit anonymously" checkbox checked, the backend correctly receives isAnonymous: true. However, the logged-in user's userId is still being saved in the MongoDB document, which violates user privacy and ignores the anonymous flag.