How should moderation work (and flags)?

Yes, moderators where provided with a private space with documentation on how to use the tools, as well as other moderation-related materials, as well as peer-support from other mods on ongoing situations.

On flags, as the forum activity and users keep growing, the threshold to auto-hide a flagged message is more difficult, so for example an offtopic flag involving two TL2 users is less likely to be hidden before moderation review.