Good news: Tracker comments now open without registration.
Announcing: Open commenting on the Knight Science JournalismTracker! No registration needed.
Our tech expert Patrick Wellever has been working on a project to open comments here to anyone, whether registered or not. He just emailed me to say he has thrown the switch. You now can comment on a post immediately even if you are not registered at the Tracker.
We still encourage you to register; we're eager to expand our circle of friends. But if you haven't registered and you feel the urge to join the conversation, please do so.