You thoroughly explained both the Centralized and Decentralized platforms and in my opinion without any doubt we need the Decentralized voice because every one will have the equal right of expression and they will also gain the rewards for their time and effort, i joined the LIT, but i never heard about the SOLA, do we have to invest in SOLA to join or we can join for free. Thanks for sharing and wishing you an great day. Stay blessed. 🙂