Alright, here are my suggestions.

1) Put an option in the Forum Settings to have an email sent to you when someone responds to a thread you are subscribed to.

2) Don't put the response to the thread in the email, just a link to the response.

3) When you click on "New Posts Since Last Visit", show it like it used to be on the old RCU instead of having a direct link to a response to a thread, have the thread subject listed and have an icon (like the down arrow on the old RCU) to go to the newest post in that thread)

4) Give me some money.