[kdragon]

Nostr partially addresses this in a few ways:

* Media itself is not stored, only links to media.

* Relays are free to limit usage, charge a fee or require proof of work.

* There are many kinds of messages with different storage standards i.e ephemeral messages are not stored at all.

[lucideer]

Not storing media sounds odd (prone to linkrot), but I guess this feature is likely optional?

I'm not an expert but the SSB scaling issues seem related to the architecture being tied to the sigchain, & general feed immutability. This makes it very difficult for pubs to, for example, accept/process subsets of posts or do anything out-of-order. It also makes it impossible for clients to limit local database storage, especially mobile clients where that might be at a premium.

Even just the existence of ephemeral notes seems to indicate there's no such architectural limitation so that sounds really hopeful.