The status of NS_PROPRTY

> However at the same time Property pages are annotated with special properties as part of their definition process. So does this mean that only special properties are enabled by default for property pages?

[0] contains the default setting for namespaces defined by SMW which includes SMW_NS_PROPERTY therefore annotations work out of the box and are not limited to special properties.

[0] https://github.com/SemanticMediaWiki/SemanticMediaWiki/blob/master/src/NamespaceManager.php#L203-L217

James Hong Kong (talk)