User blog comment:Rappy 4187/Technical Update: January 18, 2016/@comment-25523075-20160121190254/@comment-126761-20160121193343

Indeed - it's gone away now.

However, I'd just like to qualify the 'forever' - at the moment we have no plans to bring it back, but I wouldn't want to rule it out completely. (It would likely be a bit different if we did use the concept again.)