When it comes to divorce, what does a Twitter name matter in the scheme of things? The mountain of controversy surrounding Demi Moore's continued use of the Twitter handle @mrskutcher is sure to flare up as the recovering actress marks her return to the social media site. Moore has been M.I.A. from Twitter for more than three months. Moore's 5 million followers received her first post-rehab Tweet as @mrskutcher on Monday. The Margin Call actress wrote "Testing," a caption on a photo of Moore hanging out in bed. Despite going through a split with actor Ashton Kutcher, she has yet to choose a different Twitter name. Prior to checking in rehab for substance abuse and an eating disorder, Moore called out her critics stating, "changing my twitter name isn't a top priority right now. sorry it bothers so many of u. should I not tweet until I do?does it really matter?" While Moore might still be holding on to the past, Kutcher has been filling up his social calendar with a bevy of Hollywood's hottest gals. The Two and a Half Men leading man is supposedly spending a lot of time with former on-screen love Mila Kunis. He has also been linked to sexy pop siren Rihanna.