Community moderation

[joshfraser]

Allow community moderation whereby people can reply with /spam to any message. We'll keep track of how many times a message has been flagged and how many times a specific user has been reported. Moderators should be able to set custom thresholds for their communities above which messages should be automatically deleted and users should be banned.

[DanielVF]

• [ ] Make sure to whitelist the good guys.

[telemedotio]

+1 to whitelist and also wish to have auto anti-spam