I must point out to other members of the forum that what you are proposing is not how things should be done. You have an obligation to protect participants’ rights and their privacy. I don’t see that you have done that.
I would encourage you to work with a school or other academics-affiliated adviser who has experience gathering data from “human subjects,” and who has experience in producing documentaries. Although this appears to be your “independent project,” make sure you are protecting the rights and privacy of participants. There are established mechanisms and procedures for doing that.
I believe there is also a need to develop a mechanism to hold this forum “harmless.” That must be built in to any release participants sign if they volunteer to participate as a result of encountering your project through this forum.
It is one thing to develop a “snapchat” or “instagram” group; there, users remain anonymous unless they choose to reveal their identities. It is a totally different thing to respond to an internet-based survey or to participate in a videotaping session.