The root issue would be: let's say I have a url such as test.helioho.st/newvocab.html
and somebody innocently goes to test.helioho.st.org/NewVocab.html, I don't want them to get a 404 error simply because they used mixed case on in the URL; etc. This already happened to my in my testing before I realized that helio hosting was case sensitive by default.
I think there is a reason that some web servers don't have case sensitive URLs by default (I think windows based servers do not), and also there is a reason that linux/unix based servers let you turn this off, so I'm hoping to find a way to turn this off at the domain level.