Ashton Kutcher, who was famed for being one of the first celebrities on Twitter, has voiced his opinions about how the social network has changed.

During a conference in Las Vegas earlier this week, Kutcher was asked his opinion on Twitter and revealed: "Twitter's experience has changed for me, pretty drastically."

He continued: "It used to be sort of a personalised experience for me, a really personal experience that I could share. For lack of better verb, I think the media kind of ****** it up."

The Two and a Half Men star also blamed companies and corporations for drowning Twitter in "people just pitching crap".

"I think re-tweeting hurt Twitter the most," Kutcher added. "It created a tonne of noise in the system that took away from some of the value."