@da8a5860

>different profiles for different activity types

Do you mean different ActivityPub actors?

In Lemmy there could be a user and a group with the same username on the same server. To distinguish between two actors they use properties object:

https://lemmy.ml/.well-known/webfinger?resource=acct:activitypub@lemmy.ml 

 @silverpill Bingo! 👌