Mark, as someone who can type as fast as twelve words per hour, you probably don't understand what it's like for us lesser mortals who type even slower !
...if we all posted on every thread that we read, well, there just aren't enough hours in the day.
I suppose that I tend not to post if I don't think that I can 'add' anything to the discussion. Lots of back-slapping and 'nice truck / photos / kit' doesn't really help those who follow but its absence doesn't mean that the thread is not appreciated.
I 've come to realise that I 'm something of a thread killer. There probably won't be any more posts after this one. Sorry mate !