Chris Taylor says, “Twitter’s question changed in 2009, prior to which the status box asked: “What are you doing?” CEO Dick Costolo has pointed out many times that users tended to respond: “Well, I’m looking at Twitter.”

The company didn’t think the change worth a blog post, and hasn’t returned our request for comment on whether this is the result of any kind of testing that suggests such a set-up would encourage more users to tweet. (Around 50% of Twitter users are simply lurking on the service, reading tweets rather than diving into the conversation pit.)”.

Twitter tries to make it easier to tweet, looks more like Facebook

Mashable