Count # of members subscribed to a topic?
If my understanding is correct this call will let me see which members are subscribed to a discussion board. E.g of 500 community members, 30 have subscribed to get a notification whenever activity ...
Forum Discussion
Unfortunately yes, this API is only designed to do stuff for the current users subscriptions (or another user if you pass subscriber.id='xx') and is unable to do a global count of subscribers to a node.
