About: http://webisa.webdatacommons.org/211716803

Property	Value
http://www.w3.org/1999/02/22-rdf-syntax-ns#type	http://www.w3.org/ns/prov#Entity
http://www.w3.org/ns/prov#value	The three questions you link to are in fact good examples of the commenting system working as it is intended to.
http://www.w3.org/ns/prov#wasQuotedFrom	stackexchange.com