Any background on who "Conformal Systems" are and why they would operate exit nodes ? I'm not really familiar with who they are and what they do, but they seem to be the only one in the top-25 that isn't either a hosting company or a residential ISP. (apart from Formless Networking, but that one is a bit more well known) Not that it's not nice of them, but it seems a bit out of place.
we have 3 nodes running up to 4 processes on each node. each node is capable of pushing out up to ~600 Mbps with 4 processes on it. the nodes run bitrig, a fork of openbsd that several of our developers hack on.
EDIT: i just read the linked article and i see why we are listed - we have our own ASN and run openbgpd from our colo space.