During Wikidata documentation sprint we created a new help page https://www.wikidata.org/wiki/Help:Wikibase to briefly explain Wikibase to Wikidata community and users. We will remove most references to technical details of Wikibase from Wikidata documentation and refer to Help:Wikibase instead.
Wikibase developers please have a look at this page and make sure it contains the basic information you would like Wikidata users and Wikidata community to know about Wikibase. I think references to meta and wikiba.se are enough for most details.
If the current help page is enough, just close this task!