Human emotions are a broad spectrum. Lots of things going on inside people that they do not even know about. Someone may be constantly at the attention seeking up dates not realising they have a serious underlying problem brewing away and the only way they can reach out is to occasional make silly facebook updates. Obviously there are more than a few melodramatic souls who do milk the attention.
Scotland still has a very stoic, Presbyterian, macho culture. You are not meant to show weakness or too much emotion. Some people like this but it leads to people keeping things bottled up. As I said when things are brewing inside, sometimes one of the signs is a bit of attention seeking.