I think it was because the creator put a code for every server that had the addon gave him admin.
that's..brilliant
I heard author was a pretty cool guy.
and then you'll get your key revoked.
Are you sure? I don't remember seeing JJStorm or Moppy being revoked by the /recheckadmins command (JJStorm) and /adminup (Moppy) in their CityRPG addons. But of course, because of my bad memory, I could have forgotten.
might've happened silently? did they ever release the mods publicly?