Starting today, PopularScience.com will no longer accept comments on new articles. Here's why.

Comments can be bad for science. That's why, here at PopularScience.com, we're shutting them off.

It wasn't a decision we made lightly. As the news arm of a 141-year-old science and technology magazine, we are as committed to fostering lively, intellectual debate as we are to spreading the word of science far and wide. The problem is when trolls and spambots overwhelm the former, diminishing our ability to do the latter.

That is not to suggest that we are the only website in the world that attracts vexing commenters (sic).

http://www.popsci.com/science/article/2013-09/why-were-shutting-our-comments