Conversation

@julian @evan @jenniferplusplus @mikedev @erincandescent @evan @trwnh

>7888/171b use context whereas 76ea uses a new property thr:thread

I think context is good enough. Streams and NodeBB already provide this collection and Mitra will too.

>171b specifies a new object type Context

It is for easier identification of conversation-Add activities. My server may receive many different kinds of Add activities, and it would be nice to have some indication of what collection is being modified.

This is just an idea though. Streams uses Collection type

>Collection items:

My use case requires items to be activities, but I can support both variants of context collection. Conversation activities can be also put into a different collection.