Well I've only posted a few times here...
Jazzo, if your underlying purpose was to get me to made a rare superfluous post, you succeeded ! (Kidding of course).

I know what you mean about answers getting lost in a sea of "don't knows" but I prefer threads with responses -- even non-response responses. Threads with no or very few posts just seem kind of lonely. It seems discourteous to me if someone doesn't acknowledge a person's question with some remark. So I have no problem with this. Forums are for gabbing and a big percentage of most conversations is just filler.