"It's just Twitter for the annoyed."
I thought Twitter was Twitter for the annoyed!
Whenever I see something in my Facebook timeline saying "so-and-so has just signed a petition on change.org about something", I am reminded of Matthew 6:5
"And when you pray, do not be like the hypocrites. For they love to pray standing in the synagogues and on the street corners to be seen by men. Truly I tell you, they already have their reward."
It seems to be the electronic equivalent of public prayer - throwing some wish into the ether in the vague hope it might be fulfilled and saying "Look at me, I'm making a stand about something". No you're not - you just put your email address (I bet it was a throw-away one too) on a website.