can I run something to view the last time a list view was used/viewed? 
 workbench? 

I created an outbound mesagge using workflows but I received this failure while sending this to the WSDL, any idea where should I check ? 

Operation 'notifications' is not defined in the WSDL for this service

can I run something to view the last time a list view was used/viewed? 
 workbench? 

After haivng used salesforce for several years and too many users having access to create public list views, it is time to clean them up. I am trying to run a query to find out when a list view was last viewed. I know there is a lastvieweddate field, however, when you run the query, it shows when you, the user running the query, have last used that view. It could have been used by another user 5 minutes ago though but if I am running the query, that is not reflected.

So how could I go about finding out when a public list view was last viewed by ANY user in the org? The end goal is to delete any public views that have not been used for more than let's say 4 months by any user.

Opened a SFDC support case and was told that this is not standard functionality and to post on the forum here to see if anyone has any ideas and/ or to post it as an idea.

Any help would be much appreciated.