Wiki投稿がスタッフ以外でも編集可能なら、編集できるユーザーが全ての編集履歴を見られるオプションがあっても良いのではないでしょうか?

Plugins: ad manager and data explorer
No theme components
I think it was last updated on Sunday.

I tried to install a theme component recently and it failed with internal error 500.
See Custom Header Links - #155 by MikeNolan

Safe mode doesn’t seem to change this, nor does unsetting the ‘edits are visible to all’ flag and creating another post turned wiki.