Well a while ago Danny Sullivan made a post about comment spammers being the dirty sleezy scumbags that they are.
When comment spam was new and limited most of the people who were doing it were somewhat intelligent and did not hit too many live blogs. Since then people have got dumb about how they do it, hitting even blogs ran by search engineers.
I guess I understand working your way around the system or doing what you have to do to compete (I manually added a few spam links to some sites when I was first learning the web & SEO and did not understand some of the broader implications of what I was doing) but eventually as you learn and as techniques lose their value the solution is to move on to doing other things.
Some people are still holding on to comment spam and it is annoying. Some of them are going so far as to register domains like drive.to or shop.at to where if you block the domains it prevents people from writing some common phrases.
And then you got Google caching random .xml documents you do not remember ever creating chuck full of spam. Of course the fine people at MovableType do not care about comment spam when you buy a license, upgrade the software, or pay for an install. No, that is your problem for chosing to use MovableType in the first place.
I would love to see MovableType write an open letter of apoligize to anyone who ever paid for a license to use their swiss holed software in which using requires a ton of operator intervention.
If you are selling thousands of licenses of your software and it has holes in it then you ought to take the time to discuss the issue with people to do a legitimate job to fix the problems. And you ought to apoligize to anyone who paid for the nightmare you put them though with MT. I mean some of this stuff has still been uncovered fairly recently, and your company long ago had VC funding.
How long does it take to plug the holes & make a useful software product?