"Demotion" Plugin for iTunes

Even though my willingness to listen to a specific piece of music on my iPod depends heavily on my mood and I would ideally want to iPod to know that and stuff, I think that is a pipe dream and I need something else mid term.

So what about using the good old "4-5 stars" playlist and helping it a little?

There is songs that I skip a lot. They are on the list but somehow I mostly don't want to listen to them just now. On the other hand, they are good enough and I do not manually change them to 3 stars.

So what I need is a plugin that checks play count, skip count, last played date and last skipped date and demotes stuff that I have skipped too often or consistently.

The icing on the cake would be if it remembered and later promoted those back up when I have forgotten about them.