@bnewbold There is no advantage in using DID URLs. That severely limits the number of DID methods developers can use, and excludes the most important method, did:key.
You're right, new URI scheme is much better. This approach is being explored in FEP-ef61 (where ap:// scheme was proposed).
ActivityPub IDs are RFC-3986 URIs, and that RFC doesn't forbid non-DNS naming authorities (idk about WHATWG standard). However, you can't build a valid RFC-3986 URI with plain DID because the portion after the last colon is parsed as a port number. Two solutions has been proposed:
- Percent encode DID: ap://did%3Akey%3Az6MkrJVnaZkeFzdQyMZu1cgjg7k1pZZ6pvBQ7XJPt4swbTQ2/actor
- Pretend that we are using IP address from the future: ap://[vd.did:key:z6MkvUie7gDQugJmyDQQPhMCCBfKJo7aGvzQYF2BqvFvdwx6]/actor