Great point, both to “what is the collections community” and the implied, what do we mean by a collection. For starters anyway, the ideas paper does discuss this somewhat. It seems our intent to start with natural science collections, then broaden the scope from there (living collections, zooarchaeological collections, …). Certainly, in many (most) cases the data for such a catalog is going to come from those working in the collections like the collection manager you reference. They will have an interest in the data they need for their work, but what other data might they be able to supply (if they had incentive/time)? And who would make use of that data?