It's essentially a social work/marriage counselor type of role, that works to help people come back to reality from their conspiracy mania. Repairs families and relationships. Helps people communicate and get back to loving each other. Helps people escape cults.
And it's all for free.
This is a good long read that goes into the methods they use to help people reconnect and become human and rational again. It takes a lot of work, but if the other person is worth it, their methods are proven effective.