User blog comment:Kirkburn/Technical Update: February 17, 2016/@comment-25648422-20160218014534/@comment-126761-20160218020007

We know this has slowed down a lot - we're looking at the best way to proceed. Primarily we want to get the messages that are 'expected' to be customized sorted - things like the previously whitelisted chat emoticons and welcome message. Beyond that it's a little more complex given the sheer range of messages available, and there isn't a quick way of reviewing them all.

I'll make sure to discuss this again with the development team.