Dedalus
Mercurial and fleeting
I think it's important to be critical of moderators without it being considered a personal attack.
Well, my posts in this thread were deleted, not for being a personal attack, but for being off topic.
You'll usually get an alert that says the post was deleted and a very brief explanation as to why.
I had a post deleted that was polite but critical of a Mod. No email explanation - just 'poof' gone.