I just noticed the comments policy on IDC's blog, 'eXchange'.
"Submitted comments are moderated; some comments may not appear. Posting may take longer than 24 hours. Please check back."
Longer than 24 hours? Wow, they must have a lot of comments to go through.
So, I checked. Nope. There's been a handful this year - and most are trackbacks.
Credit to Frank Gens though. When someone has left a question, he's answered it.
Update: Read the comments on this post - IDC has changed its policy and its process (and to be fair, it was already in progress and not as a result of this post!)