Tony - people here try to answer everyone that posts, but some do slip through the cracks.
It can also sometimes be that like you have said, the poster has asked a question that only a few people have experience with, and so they may read a post but have nothing productive to reply with from their own experiences. So they do not reply. You can understand this from your own postings I'm sure, since we only have a couple posters that like you have had a total larygnectomy... That makes most of us inexperienced when it comes to talking about that subject. The posters here do the best they can, and that they even come back after treatments to try and help others at all, makes them great people in my book.