OP here. I definitely agree with you about social media being a good way of maintaining a record of what you've done. I often used to scroll down and down my FB wall for hours looking back at all the pictures and memories from my time at university.

I probably should have played this up more in the post, but my motivation for writing this came from having been on holiday and feeling a huge relief after I decided to stop constantly trying to document everything I was doing. I took just a handful of pictures, wrote about my day each evening on OhLife (great service if you haven't used it) and besides that just enjoyed the moment. When I compared this to what I see when my friends are on holiday ("At the top of the Empire State!!!1 #w00t #thuglyfe") I felt compelled to share my thoughts. To be clear, it's not a holier-than-thou attitude, I just think that people miss out on a lot when they concern themselves more with posting about their experiences than they do with enjoying them.