The options for H+Pedia licensing were considered under H+Pedia:Proposed licensing
H+Pedia is licensed under the creative commons license, CC BY 4.0
This permits both commercial and non-commercial use of content, so long as attribution is given to H+Pedia and its contributors.
H+Pedia may include material which is not original content, and this does not necessarily fall under the such as copyrighted images used in a fair use context. Such content should be marked by exception.
The use of defensive copyrights in the days of the ubiquitous copying machine that is the internet is regressive and anachronistic. However the legal climate for western countries presumes copyright, and thus for creators to defend their work in this fashion.
The request to credit content in H+Pedia as a source material is a request for politeness appealing to fairness and attribution, rather than than of a legal threat against content misuse.