As I just wrote above, with a Discord server, Luc could easily assign one or several individuals as moderators, and regular group members with more experience can be easily color coded so that newer members can see who to turn to with questions if Luc is unavailable. It's also really easy to have voice sessions where one or several people have the mic and everybody else can listen in if they want to. There can also be channels reserved for announcements, server protocol, faqs, etc. And there are bots that show current coin information and other stuff.

For anyone wanting to learn more about crypto, there are a TON of great Discord groups and it's pretty easy to get invites. Unlike Slack.