you can feel comfortable with internet personas after someone has posted more than 20 times -- you begin to see a personality, character, and a consistent level of skill and knowledge. In discussion forums, phoney usernames get created just to get a discussion going on a topic. It's the best fodder to give search engines to find the site with.
I object most strongly to phonies using the thread to create doubt and confusion about products from a non-sponsor. I also object to the fact that many key participants spend time and effort to help while all they are really doing is spinning their wheels.
The above poster doesn't ring true; although whoever has the password can come back and object, acting like the real McCoy. Let's discuss friction losses in shower heads then, and not a miracle that improves flow.
David