If I understand correctly, you only pay that much to go to the inbox if you aren't a friend with the person. Friends message friends for free. It's actually pr

If I understand correctly, you only pay that much to go to the inbox if you aren't a friend with the person. Friends message friends for free. It's actually pretty clever, I think. It's too high for unsolicited spam, but it's a trivial amount for the very rare instance of wanting someone you're not a friend of to read it.