How will replies work from non-members with the new channel model?

1. Only members can create a new cast in a channel

2. Anyone can reply to a cast in a channel

3. On Warpcast, member replies will appear "above the fold" and non-members will be below the fold in "Show more replies"

4. However, if the original cast author likes or replies a cast from a non-member—or a channel mod likes or replies—the cast will appear above the fold.

5. This balances the membership model for channels with the ability for discovering new people, highlighting their reply and potentially inviting them to the channel.

6. Since you can have up to 10 moderators in a channel, including helpful bots, we expect that people will build bots that help surface interesting replies for non-members (and possibly even auto-invite them). Developers will get creative.

7. Ultimately, your channel, your rules.

On 4 you are referring to a reply, not a cast, right? 

Because a non-member can’t create a new cast in a channel.