The W. H. Harrison Administration was quite possibly the best administration we've ever had. Scandal-free, the administration suffered no catastrophes of any sort. America did well.
Can't tell if sarcasm or actual libertarian logic
Can you name one bad thing that happened over the course of the administration?
Can you name one good thing that happened over the course of the administration?
Nothing got screwed up.
So he's neutral. Good means actively improving the nation, not just the lack of making it worse.
For me, Harrison is the line that separates the good and bad Presidents. Those Presidents who've left the nation better off are above him, those who left it worse off are below him.