Not to be confused with the character Discord, there’s a Discord client server for foalcon. Bring your fetishes, and be sure to mention whether you’re at least 18.
EDIT:
Even though Discord no longer allows cub/foal erotic images and the old server is gone, we now have a group based on foalcon fanfiction and general discussion. Come join us here:
Will check after. I wanted someone to discuss Foalcon. As Derpibooru seems to be going in a direction against it. We should create a safe haven for those images.
Our invite links are disabled, but the group remains. Individuals who can show genuine interest in foalcon are welcome to request a single-use invite link which I can send via DM.