[alexkcd]

Since they say their intent is to compete on price with S3 / CDNs, it seems possible to be able to download a file without having permissions to delete that file. If that were not the case, then Sia would be limited to personal backup only.

[ragle]

It's confusing, because they refer to themselves as a potential competitor to S3 several times in the linked article, but I thought I read somewhere that conceptually what they're building is actually just the data persistence layer of a service like S3?

A complete S3-like service would require a third-party tool on top of Sia. Goobox[1], for example, uses sia as a storage backend and provides an S3-compatible API[2].

In other words, right now - I think if you are interacting with Sia directly you can do whatever you want with the files you have access to. Not 100% sure about that.

[1] - https://goobox.io/

[2] - https://doc.goobox.io/#section/Why-you-should-choose-Goobox-...

[bond]

A complete S3 service on top of Sia is what SiaPrime[0] is doing.

[0] - https://siaprime.net/