Users post using WYSIWYG editor and when those post show up in the moderation queue look like a mess of various BBCode tags, custom fonts color and whatnot. It makes it really hard for moderators to quickly have a look at the post and take action. Specially when there are videos or images, usually the have no clue until they copy the URL and look at it in another tab. You tube videos are parsed and only video ID is there within video BBCode and moderators might not be technical enough to know hoe exactly see what it points to.
All these problems are doubled when you run an RTL language forum. Please give us an option to enable/disable WYSIWYG in moderation queue.