Disappearing posts

'Posts keep disappearing before they are posted. Just as you are getting near the end... gone. This is still happening today.' 

I posted this three weeks ago, after suffering in silence for a few more weeks.  It is still happening today.  Isn't it time this bug was fixed?  

And while we are at it, can the default group when making a post be changed to General Discussion?   The current system is impeding discussion.