I still cannot imagine how this concept is profitable to the token holders. Yes, I do understand that we can sell our unused sms, but how do we sure that we can sell our sms and to make them sold out?
SMSTO is used for mutual settlements between members of SMSCHAIN network and also plays important role in mining and Node fee distribution process.
The amount of SMSTO balance determines Miners priority in traffic distribution. This means that Miners with a higher amount of SMSTO will be able to sell more text messages on daily basis and gain higher financial return. Nodes with higher SMSTO balance will also earn higher fee percentage per transaction. This creates significant demand for SMSTO from the side of Miners and Nodes which are actively participating in the system.
On the other hand, there will be a demand for SMSTO from the side of companies which would like to buy delivery of text messages. They need to buy SMSTO in order for their SMS campaign to be executed.
If you put it in perspective, you will see that there is a demand for SMSTO from all members of the system. SMS miners and Nodes will want to accumulate certain amount of SMSTO on their balances in order to retain high priority in the mining process. At the same time, sending entities would also need to buy SMSTO from other members in order to execute SMS campaign. This will inevitably create a natural scarcity of tokens and therefore increasing demand while having limited supply.