A poorly thought out hypothetical, just to illustrate: Make a connection at a dinner party? Sure, technically it costs 10¢ make that initial text message/phone call, then the next 5 messages are 1¢ each, but thereafter all the messages are free. Existing relationships: free. New relationships, extremely cheap. Spamming at scale: more expensive.
I have no idea if that's a good idea or not, but I think that's an ok representation of the idea.
I was specifically thinking about general communication. Comparing the quality of communication in physical letters (from a time when that was the only affordable way to communicate) to messages we send each other nowadays.