What are good things to do with Neocities Supporter Rank?

Hi, i just bought supporter for neocities and i know that you can add video/music formats, use a different registered domain, and bigger storage capacity for the site.

however thats it, i don't plan to add email support because i want a site thats a great original homepage (a tad bit inspired by newgrounds 2003-2012) i need features to add alongside a bboard

is there anything other i can add?