Blogs.Msdn.Com infrastructure?

For obvious PR-ish reasons, Microsoft encourages employees to have public blogs.  For obvious ego-ish reasons, a ton of Microsoft employees have taken the company up on the deal.

I had a personal blog 3 years ago before I left Visio, at a time when it wasn't that easy to set up.  I also have an internal blog (mostly unused now) and am one of the owners of the internal MS blogs server.  But when I signed up for this blog, I pretty much just signed up on a website and whammo...a few hours later I was blogging.

Anybody here care to fill us in on how this site is managed?  I haven't gotten any comment spam yet.  Is that just dumb luck or is some filtering going on?  Scott?