The great thing about SALT is you don't get unsolicited messages from anyone you haven't chosen to match with - only mutual matches can chat with each other. Phew. If you've both tapped the heart icon on each other's profiles, you'll appear to each other in Chat. Add a conversation starter to your profile and you've got a great opener that only your matches will see the answer to. This helps reduce the "Hey" and "Hi" messages.