We can't find out which torflow instances are using a bandwidth server: https://lists.torproject.org/pipermail/tor-project/2018-December/002108.html As far as I can tell, sbws doesn't provide any scanner info in its HTTP requests. Here's some things we might want: * software-name: sbws * software-version * scanner-nickname * scanner-IP-address? (pro: doscover users who haven't set nickname, con: discover users) Non-standard HTTP headers start with "X-". Assigning to 1.0, because this is vital debugging info.