You're not doing anything wrong, but you may not be reaching the people you want. There are two ways to respond to a thread. If you do it like your initial replies, the comment goes out to the entire thread, which has six pages of participants. Nobody knows who you are talking to. If you want to specifically respond on another member's comment, highlight the text in their post and you will see a box pop up that says "quote/reply". If you hit the "quote" button, you can make a new reply, add in the quote, and it will automatically copy in the member of the original post.
