patc - 12:51 am on Aug 29, 2013 (gmt 0)
I haven't done it purely because I think as a webmaster my opinion is completely skewed - of course I think my sites should do better. As does every other webmaster of a 'small' site (whatever that is) on the planet. The algorithmic penalties dished out to my two biggest in late July indicate that I've bigger problems than a 'should do better' mindset to worry about anyway, it seems.
If I had no shame, I'd tweet out to my sites' followers for them to fill it in but I'd rather not involve my loyal users in how badly things have gone lately with regards to the sites' ranks.
So that leaves me not filling it in. But not because I'm skeptical of Google's motives as a hell of a lot of people clearly are.