WhatsApp will keep your phone number completely private in community chats

Your phone number is generally secret in WhatsApp communities, but there's still a chance you'll let it slip if you react to messages. That might not be a problem for much longer, thankfully, as WABetaInfo has discovered that WhatsApp is more broadly testing a "phone number privacy" feature with beta users. Enable it and your digits will only be visible to community administrators and those who've saved you as a contact.