There are currently 2K members in the Prolific Reddit community. This community was established on July 13, 2014. These are the details from Reddit: “We’re on a mission to help improve human knowledge by connecting researchers with diverse participants around the world. Read more about our platform and sign up at https://www.prolific.co/participants or visit our Help Centre for more information: https://support.prolific.co/. Prolific’s Team occasionally posts and replies here.“
This is the direct link to the Prolific Subreddit. Below are the latest posts, which are updated frequently.