Nice product.

1) can users message each other?
2) can user post a new topic or question readable by all members? Can a member with specific user role respond and can that response be made avail to all members?
3) for direct pay to bank scenario, order ID creation is brilliant idea but can user include order ID and proof of payment image during the registration process ? If not how to capture the proof of payment image for this user when he registers?
4) For form fields, are there conditional options for custom fields? One field value will be determined by another?
5) For city, state and PIN code for India, does state get auto populated based on city or PIN code? If not possible, is there a way to do this with custom JS?
6) On back end where are the uploaded images stored? Are they easy to view for each member?

Above need for my client.