This might be a feature request. An asker of a question automatically gets notified when an answer is given. I also know that I can click the link on the question to be notified of answers to the question. This is great if you want to listen in on a thread without participating. However, I think that the answerer does not get notified by email automatically if there are responses to the answer. That means any requests for clarification and so on can slip below the radar. It makes sense to me that the answerer should be automatically subscribed to the threads they answer in case follow up is required, otherwise it is tough to keep track of.