See also T342859: Do not display CreateObject form if user does not have right to create ZObject
This should happen when
- User is blocked
- User is using a local blocked IP or range (without ipblock-exempt)
- User is using a globally blocked IP or range (without ipblock-exempt)
As an example you can view https://www.wikidata.org/wiki/Special:NewItem with an blocked open proxy and no form will be displayed.