Dr Tara Marshall at Brunel University has been conducting some very interesting research into what people post on Facebook - in particular around the area of health and fitness.
People who tend to be narcissists regularly post around the areas of health, diet and exercise, as they seek continual validation from their online community.
There may be very good reasons for continual updates - perhaps to set an example, maybe to inspire others, or quite often, to be accountable to others to keep themselves on-track. Because of this, it is difficult to draw a conclusive reason why people post what they do. If it helps them, great, if it annoys you, just don't follow their timeline, it really is no more difficult than that.
The whole findings in the study included :
- People with low self-esteem more frequently posted status updates about their current romantic partner.
- Narcissists more frequently updated about their achievements, which was motivated by their need for attention and validation from the Facebook community. These updates also received a greater number of 'likes' and comments, indicating that narcissists' boasting may be reinforced by the attention they crave.
- Narcissists also wrote more status updates about their diet and exercise routine, suggesting that they use Facebook to broadcast the effort they put into their physical appearance.
- Conscientiousness was associated with writing more updates about one's children.
Whatever you use Facebook for, then that is great. If it keeps you moving forward in life, then that is the main thing, it helps you, and you can never tell how anyone will view your posts. It is a tool to be used by you, and there seem to be no rules with what you should and shouldn't post.
If it helps, that is the main thing.