Your post surprises me, because just a couple of days ago you told me you were a libertarian, and that suggests you would oppose all forms of slavery. Of course

Your post surprises me, because just a couple of days ago you told me you were a libertarian, and that suggests you would oppose all forms of slavery. Of course, you later added that you were a utilitarian, and you're certainly not the first utilitarian to favor some type of slavery. But I don't see how you can square this with the "libertarian" label.