Personally, i find it both dangerous and freeing. Trusting people on the internet is something that has never been a problem for me, although i would never meet up with someone alone and without knowing who they are.
My name is Jenny. This is not an alias, and I'm perfectly fine with using my own name. I use it often. I trust a lot of people on the internet with my personal information. Im friends with a lot of denizens on fb.
However, i dont think any of them know my address. They could, I'm sure, but I know who I friend. I make sure theres a life behind the profile.
In the end, i believe in the right of it. But its a power that has to be wielded carefully. Trust wisely.