A few days ago, we implemented a new feature here at The Sand Trap: "subscribe to comments."
Next to the "Post Comment" button at the bottom of every article here at TST, you'll see a checkbox that says "Subscribe to Comments." If you check it, you'll be sent an email every time someone else responds to the same article. They may be responding to you. If you wish to unsubscribe, each email contains a link that allows you to do so.