I guess the thing that is funny about saying a moderator likes it is that what does being a moderator have to do with liking the fire phone? You might as well say I know someone with blonde hair that likes the fire phone. It would make about as much sense.
No the real problem with Harry's post is equating personally knowing a single person that likes the phone with contradicting the assertion that the Fire Phone is a failure. Products that are commercial failures still usually have millions of owners many of which are content with their purchase. For instance I was a happy owner of a Toshiba hd-dvd player several years ago.
I think what Harry committed is what is called an anecdotal fallacy.