bwauths need to upgrade (to start measuring even non-Fast relays)
With the recent commit of #8435 (moved) to Tor, directory authorities will leave off the Fast flag from any non-measured relay.
I believe bwauths currently don't measure relays that don't have the Fast flag.
Bad cycle we're about to have here.
See https://trac.torproject.org/projects/tor/ticket/8273#comment:6 and comments below it for context. Aaron has a proposed patch.