Glad to help Derek.
As far as getting the counts for # of Blog posts, # of Forum posts, # of Registered Users, & # of Subscribers, it appears that none of the Wix Code API’s allow access to this information (as of yet).
Neither the Wix Blog nor Wix Forums has a Wix Code API. Which would be the logical place to find a property to get the count of posts for either one of these.
Also, unfortunately, neither the Wix Users or Wix CRM API provide for a “count” property to get the count of Members/Users or Subscribers.
Maybe someone from Wix will be able to provide more insight.
Best,
Nick