Imagine we often saw people coming to LW and saying things like
"Hello. I wholeheartedly agree with the basic goals of LW and I think rationality is awesome! But, if I may make a small criticism, I think LW is being a bit irrational itself in its complete dismissal of religion. Yes, many forms of religion are irrational, but others may not be so, and one must no throw the baby with the bathwater, etc. etc."
If there was a recurring pattern of this happening, with the pro-religion arguments being made by "newbies" and being things we have seen many times before, wouldn't we get impatient with it, give it a label (such as "concern trolling") and apply the label dismissively from then on? Perhaps this is not the most open-minded attitude, and it would be very inappropriate in a forum dedicated to open discussion between theists and atheists. But in a forum where most people have decided to their own satisfaction that these criticisms are incorrect, and are more interested in discussing other topics while taking atheism for granted than in rehashing what they see as basic stuff, can they really be faulted for taking it?
Ahm, don't we in fact have a warning against doing exactly that on the FAQ?
(I speak as someone who can wholeheartedly endorse that newbie's statement.)
If it's worth saying but not worth its own thread even in discussion it goes here.