unknown things about whatsapp
1. Hidden Message Formatting You can format your messages with simple tricks: *bold* → bold _italic_ → italic ~strikethrough~ → `monospace` → monospace --- 🔄 2. You Can Undo Deleted Messages (Temporarily) If you delete a message “for me” by mistake, WhatsApp offers a short “Undo” option at the bottom for a few seconds. --- 🔇 3. You Can Mute Calls from Unknown Numbers WhatsApp introduced a feature to automatically silence unknown callers, reducing spam and disturbances. Settings → Privacy → Calls → Silence Unknown Callers