It depends on who your talking to really for many it can be the no email "signup" privacy reasons

For others it can be the the multitude of diffrent usecases under a single npub

For others it can be a new way to research like pablo his highlighter project

The possibilities are endless the current social media is just bound by whatever that company deems worthy of building with this thing you get niche apps and things build simply because its open and someone else on this earth thought it should be build