Typative

A person who types a lot, mostly very fast.
This is similar to talkative, but with the advent of technology, chances of being typative are higher.

We chatted for 8 hours yesterday, but it's only because he is very typative.

Now people don't talk, real conversations are boring and talkative people have turned into typatives.

I'm very shy, introvert and I hardly speak, yet when I'm using whatsapp, I'm very typative.