[mirimir]

Huh?

Sites like the BBC don't see guards, or middle relays, just exit relays.

However, Tor relays are exits only if their torrc has this:

   ExitRelay 1

Otherwise, to start, they're just middle relays.

It takes a while to earn the guard flag. But eventually, some relays could fill all three roles: guard, middle, and exit.

As far as I know, bridges are the only Tor relays that can be unpublished.