How can I make members able to fill in a form that will turn into a post in the forum?

[Pratham]

This can potentially be done using Wix Velo, but this will require coding and we will need to wait until this feature is released. As mentioned by Wix team member @anthony:

Posting a Wix Forum post using the API

My apologies. It must be in early testing then. I’ll try to figure out when it’ll be available.