I would agree with the above, however we aren't helping at all with our friends at Ubuntu or Gentoo or X. In all reality, this post should be somewhere else, with a laundry list of reasons. It doesn't do the other distros any good if we hoard all of the reasons why we like slackware over them in this forum. They need the ability to improve too.
With that said, If someone were to go and do that, I don't know how much that would really work. The only reason why there are so many distros is because they just plain out have a different view on things. However, if they are experiencing dependency problems, we can sure offer solutions that DO work.
Just a thought.