Layman
"I have found him to be a remarkably kind and patient expert here"
I concur. Most people are polite and helpful but there are a few who wish to show they know best by putting others down.
As PJ2 so eloquently sates in one of his posts "those who roast others without all the facts just want their name inlights perhaps, while those who know are either simply heads-downquietly doing the daily work or can't be bothered arguing."