Pros:

• Easier for continues discussion
• Can have channels for different speaking languages (English, Chinese, Japanese, and others if needed)
• We may be able to create channels for each challenge / topic

Cons:

• A bit conflicting with our notion. Contents made in discord can not have a record on GitHub for better sharing propose.

Please leave comments below and let me know what you think about if we should have a Discord or just using GitHub is fine. Appreciated!