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After an experiment in which we opened comments to allow anyone to comment on Tracker posts, we have decided to require registration once again.

We found ourselves deluged with spam, despite the use of CAPTCHA schemes, and we didn't see a corresponding increase in legit comments. In fact, we were in...

After an experiment in which we opened comments to allow anyone to comment on Tracker posts, we have decided to require registration once again.

We found ourselves deluged with spam, despite the use of CAPTCHA schemes, and we didn't see a corresponding increase in legit comments. In fact, we were in danger of missing legit comments in our sweeps to clear out the spam.

Sorry about the inconvenience; we are working on a new way to do this, and we will open comments again as soon as we can.

In the meantime, if you are not registered, please register! And sign up for our daily alert regarding new posts!

We don't give away premiums for joining the way NPR  or your local station does, but the cost of becoming a member of our station is zero. Can you find a better deal?

Cheers.

-Paul Raeburn

Bora Zivkovic was born in Belgrade, Serbia when it was still Yugoslavia, but he was born again into the world of science blogging. As one of the founders of the annual Science Online conference (or unconference, as they like to call it), an editor at Scientific American, a prolific...

Bora Zivkovic was born in Belgrade, Serbia when it was still Yugoslavia, but he was born again into the world of science blogging. As one of the founders of the annual Science Online conference (or unconference, as they like to call it), an editor at Scientific American, a prolific blogger himself, and the author of 111,418 tweets as of this morning, Zivkovic uses, understands and pushes the boundaries of the science blogging world as well as anyone.

So when he decides to assess the current state of blog commenting, it's worth paying attention.

In a substantial post at Scientific American, he begins with a word or two on the recent article in which researchers say they found that found that uncivil comments can...