Moderation in this forum.

[Silverthorn]

do newly appointed staff members get some kind of a briefing? (not just about warnings/banning and other technical things)

Here is a little excerpt from the Info-thread for moderators (most of the other stuff in irrelevant in this discussion):

Are there any special rules to follow?
Basically, you just need to ensure that the posts do not violate the Forum Rules (Announcement #1). Furthermore, you may set own rules in your forum, but in general, this is not necessary and shall only be done in case there is no other way left.

(this is from March, 2010, a few days after the new mods got their position. I accidentally deleted the first version of the thread when I updated it with a couple FAQs, so any additional infos that weren't contained in the first post are lost.)

It is not explicitly written that they have to "stay like they are", etc. To be honest, it'd sound quite silly if it said something along the lines of this, at least for the time it was written. I don't know if any of the follow-up-posts contained relevant stuff (since I restored the thread, it's been awkwardly quiet in there :p), but, either way, a specific behavioral remark sounds unlikely.

The only thing which might come in relevant is from a few weeks later which is more about the ethics of what to edit and what not. It's quite a big text, which I really don't want to copypaste here... (related to both the fact that there is stuff that doesn't make sense without background-info and because there is sensible stuff discussed)