Nowadays, writing something down is the direct way to record someone's ideas. After all, writing is not required to any communication skills so that geeks can write down what they want to express, what they have thought and what they think it valuable without considering the problems in social chat. And it is also beneficial to people because others can learn something from geeks through reading what geeks wrote, which is a form of transmission of knowledge.
In additional, writing down something is the safe way to save so that we won't lose it easily. For example, people can record their daily experience or some ideas on blog, and then they save what they write on the internet. Also, they can review it conveniently whenever they want. For geeks, it is a recommend method to record something valuable, which helps their future work.
In a word, geeks should write rather than they keep in silent and do nothing.