Be careful what you blog. Most bloggers feel totally safe sitting behind their computer monitors, thinking that the world can never touch them for what they blog. Most bloggers are wrong. The truth is that bloggers are being held accountable by governmental authorities like never before.
Yes. Many have that kind of misconception that blogging is just thinking loud. Just creating anonymous fictitious ids and names doesn't meant they cant be tracked. Either they don't know how Internet operates or quite reckless. It is much quicker to track a blogger than an author printing a provocative content in a book. Beware.
Just use your common sense when you write and you should be OK. Would you go on TV and say the same things that you blogged? Would you sign your blog article and publish it in the local newspaper?