Could you elaborate on the applications and uses of GLM in the realm of cryptocurrency and finance? I'm particularly interested in understanding its relevance and potential impact in various scenarios. Does GLM find application in decentralized finance (DeFi) protocols? Are there any notable projects or platforms that utilize GLM extensively? How has the adoption of GLM contributed to the overall ecosystem and what challenges or opportunities does it present? I'd appreciate any insights or examples you could provide to illustrate the use cases of GLM in this domain.