I like the idea of replacing the forum chatroom with Discord. However, there are a few things that are turning me off big time. Maybe Remnant can clear them, as he probably knows more about Discord than I do.
What I like with the current chat, is that it's 100% integrated into the site. You register on Paranormalis, you have access to the chat. The end. With Discord, you'd have to register on Paranormalis, then register (or link) an account on Discord in order to chat. And Discord cannot be embedded in a site. For instance, we can't have a Discord chat room inside of a page on the forum... right?
In other words, the chat room would be 100% off-site, and members would have to register on Discord on their own in order to join the chat. That's not very convenient IMO. Kind of a deal breaker.
Here's the addon available for XenForo to integrate the forum with Discord. From what I can see, it's compatible with the forum in its current state... [8WR] Discord Integration