I joined Twitter just to get the VOIPo feeds texted to my mobile phone. That way I know whenever there are issues in real time (as real time as the postings on Twitter are). Other than that, I never use Twitter nor Facebook.

Joining Twitter for the purpose of getting these feeds is worth it. And I'm in the camp that Twitter and Facebook are lame and only those that "follow the herd" join (which, unfortunately, is a great number of people).