I am of the mindset that it is very theraputic and cathartic to write things down and get it out of your system. Everyone needs somewhere to rant, cry or just say something important.
I struggle with my emotions a lot. I'm broke, overweight, seriously lonely (yet highly anti-social), prone to general pissiness and I tend to feel very overwhelmed by times. So I write what are often long, rambly and disjointed posts. It really doesn't take long to learn to tune me out. :)