The way I see it, Gillian’s twitter and social media in general are not her private social media accounts. They’re meant to promote her own work, projects and activities in accordance with what the fans love her for. That’s why she’s a celebrity, and that’s why she has a celebrity Twitter account.
On the contrary, I am no one and if you don’t like what I say you are free to unfollow me and to not send me this kind of passive agressive ask.