So, this is a new messaging platform that doesn't allow sending to email addresses, only addresses within the blockchain, but without the adoption of email.
Why not actually make a mailserver with a @litenote.net domain name that allows sending, then uses a neural net based on other spam detected on the blockchain to build a database of spam to work with?
All you've really done here is make a crappy knockoff of chatcoin but not in realtime. I can do the same thing by sending 1 DOGE and putting a comment against the transaction.
Comments are not stored in the blockchain actually.
Email gateway software is planned.
Messages are received instantly, even if the coins received along with them are not confirmed yet.