Why Bill Gates need to twitter

So I heard that Bill Gates is twittering and got curious about what he has to say. Most of the times we get edited version of opinions and this would be straight from the Horse's mouth. But to my dismay I found a few other Bill Gates on Twitter already. Yes, even Bill Gates' identity is not safe. In this era to protect your good name you are forced to develop a web presence. Else your identity gets contaminated. The first thing people do is Google you up and you cringe at the thought of mistaken identities. Thus its time that Bill Gates twitters.