Lots of knowledgeable people read here, they just choose not to post.
And in some respects thats not a bad thing... the trade works well with certain things best kept as secrets rather than having a little knowledge becoming chinese whispers. People piggy backing of someone else reputation or threatening the livelihood of a person with real life concerns all through idle chit chat. Not good for anyone apart from those too bored to do anything of value.
And yes, lots know Tom, but you know as well as i do it's just best to keep shtum.