Nostr and TBD's Web5 have a lot in common. Loosely speaking, DIDs are like npubs and DWN nodes are like Relays.

DIDs vs npubs

- DIDs have the benefits that the Identity itself contains some metadata about the entity, so you could have multiple keys, and endpoints for contacting the entity (endpoints can be your own DWN, which is like a private relay)

- DIDs allow for key rotations, which means they are more secure

- DIDs are more complex

DWN vs Relays

- DWNs are mostly designed for private things, data is encrypted with your DID's key.

- DWNs seem quite complex for me, you can do a lot of stuff with these, like running Apps like you can on Umbrel OS or other personal server OS. So I think about a DWN as Personal server OS + Relay.

So, my take is that I don't know, different tradeoffs that can be summarised in a couple of points:

- more complexity

- more features (are these important?)

- users are required to have a DWN, either self hosted or rented. (Google Cloud is currently helping bootstrapping that network)

- less network effect