Short answer: Open your profile’s Guestbook/ShoutOut, then choose Delete or Report on the entry.
- 👤 Profile → Guestbook.
- 🔎 Find the entry.
- 🗑️ Delete removes it from your guestbook.
- 🚩 Report sends it to Support — add a clear reason.
💡 Tip: One issue per report; decisions can take up to 3 business days.