For example, do you use the Report Centre for everything? Do you have reports going to a forum and work out sanctions, PMs etc. from there?
Global moderators or lots of category/forum-specific moderators?
Do you have a modding framework - violations, what mods should do when they appear on the site? PM, warning, ban escalation process?
Do you use the XF warning points system to move people into restricted usergroups or into moderation?
Do you keep notes on all modding / mmbership communication / actions?
You get the idea - how do you moderate at your site?