Never assume OA or otherwise freely accessible articles are in any way full
or adequate substitutes for articles as published in scholarly journals.
Editorial and referee suggestions incorporated into the published version,
figures, tables, pictures under copyright, links to statistical and other
supporting data, copyrighted textual extracts of some length - the
list of *commonly
missing features of scholarly import in self-archived and institutionally
archived pre-pub and OA versions* goes on and on... ,
*Pagination* is crucial in many fields and OA and pre-pub versions
frequently have no correlation with pagination of published version.
OA or pre-pub version linkage may helpfully *supplement*, but should never
*replace* link to official scholarly publication.
Bots may usefully append freely accessible version, but should not revise
existing citation and linkage to officially published version, universally
cited in scholarship.
The relevant Wikipedia Policy is Verifiability
<https://en.wikipedia.org/wiki/Wikipedia:Verifiability> - accessibility and
paywalls are addressed on that Policy page.
Paul S. Wilson
"Paulscrawl"
Research Coordinator
The Wikipedia Library