With respect, I disagree; IRC with a bouncer and a bot would serve those functions handily. The other chat platforms also have mechanisms for groups, sharing fi

With respect, I disagree; IRC with a bouncer and a bot would serve those functions handily. The other chat platforms also have mechanisms for groups, sharing files and metadata, and creating social "graphs" via the use of channels. I submit that they're no worse than the options listed. What makes Twitter better than the niche social graph/network tools presented? People are actually using it.