What's with the character accounts on twitter, talking to each other?

Whoever made those accounts, whether its one person for all members, or a group, its mad creepy and heights of vellapanti. They all are talking to each other as characters, all the family members and other characters, and tagging the actors/writers too. ps. if you're going to do parody account, might as well do it properly, rather than just trying to say the same type of things