“A recently-published paper entitled Self-Censorship on Facebook reveals that Facebook has the ability to track what you’re typing, as you type it, regardless of whether or not you publish it.
“It may sound like a digital privacy advocate’s worst nightmare, but Facebook assures it’s not interested in collecting the content of your deleted text – only in analyzing whether or not you’ve actually deleted any.
“Facebook data scientist Adam Kramer worked with Sauvik Das, a summer software engineer intern at Facebook and Ph.D. student at Carnegie Mellon University, to study the data of 3.9 million English-speaking Facebook users over the course of 17 days.” – www.cbc.ca