"What counts as 'censorship' on a platform like Twitter?"

"Magazines and blogs are typically free to reject articles—and, for that matter, to delete offensive reader comments—without being accused of censorship."

That statement — by The New Yorker's Kelefa Sanneh in "Censoring Twitter" — gets a big huh? from me. You get accused of censorship all the time when you delete comments on a blog. I lob such accusations myself. Even if "blogs are typically free" to delete what the commenters post, everyone is also free to make accusations about the nature of the deletions and to use the word "censorship" if they want.

Perhaps Sanneh means to say that it's not "censorship" and that he defines the word "censorship" to refer only to the acts of government because we only have a constitutional free-speech right against what the government does. I don't accept that limitation of the word. But I do delete comments sometimes, according to my standards. I own up to censorship, and I defend my standards.

But I do understand something Sanneh might be trying to say, something I agree with: Blogs are different from websites like Twitter and Facebook which are larger frameworks designed to accommodate the individual expression of others. My blog is on Google's Blogger, and if Google tried to control what I could say it would be quite different from my deleting comments that cross whatever line I've decided to defend.