The distinction of binary and non-binary posts on Usenet is paralleled by the separation of messages and blobs on Scuttlebutt. As staltz [explained](https://news.ycombinator.com/item?id=14051181), we can garbage collect ("expire") blobs, but not message logs (although a client could do so with the current APIs, it would have security/trust and UI implications, and I'm not aware of any clients doing so).
We are also basically betting on the size of our message logs to generally grow slower than our individual storage capacities, and it is interesting to know that that worked for Usenet too. For blobs, we will likely develop some garbage collection or expiring approaches. Since the network is radically decentralized, each participant can choose their own retention policy. You can, in fact, delete all your blobs (`rm -rf ~/.ssb/blobs`) and assuming some peers have replicated them, your client will just fetch them again as you need them.
We are also basically betting on the size of our message logs to generally grow slower than our individual storage capacities, and it is interesting to know that that worked for Usenet too. For blobs, we will likely develop some garbage collection or expiring approaches. Since the network is radically decentralized, each participant can choose their own retention policy. You can, in fact, delete all your blobs (`rm -rf ~/.ssb/blobs`) and assuming some peers have replicated them, your client will just fetch them again as you need them.