No - you did not hi-jack the thread....... YOU asked a good question concerning a BLOG.
I would say that a BLOG is used to write out your feelings or thoughts on a matter or issue - as one does with a journal, and yes others can and will read it. I am going to try and use the BLOG here to help me sort out my fears and wounds on a certain subject.... to keep it all in one place.
LoVe,
Rhapsody -