A discussion thread in the Higher Ed Learning Collective:
https://www.facebook.com/groups/onlinelearningcollective/permalink/853609748603058/

“Has anyone ever used Discord to communicate with their students and to deliver short lectures or have office hours? We don’t use Zoom and MS Teams only covers one section. I have four sections of the same course. I found one article in favor of it, but figured I’d check with the general community.”

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more on Discord in this IMS blog
https://blog.stcloudstate.edu/ims?s=discord