Well, according to the title I’m feeling that Twitter is not the place for online text messaging. Although it is indeed permitted to communicate via Twitter, easily tag others through mention, reply, re-tweet someone else, but Twitter should not be used to be a text messaging protocol.
As the name implies, MicroBlogging, means micro or very short blog and blog itself comes from Web-Log, which means a daily record (log) on the web. Here the diary (log) is not tantamount to a short message (text message/short message). Unfortunately, many people consider both are same, so they are using Twitter as a place for having online text messaging Whatever they are doing, where, with whom, or something that is not important or in sarcasm, trashes, they tweet those on Twitter.