Thanks Steve! Here’s my latest reply on that same thread: https://wordpress.org/support/topic/anyone-supporting-this-plugin-help-w-discussions?replies=28#post-4951643. Giving up on the migration and sending the client to GROU.PS in the meantime since they will migrate Ning data (including forums). Then start 100% fresh with our beloved bbPress and BuddyPress.
I know this thread is 3 years old but what did you end up doing djtonyz? Desperately trying to get the Ning forum/discussions JSON file ANYWHERE. Ideally BuddyPress and/or bbPress of course. Any insight anyone!?