You can also use "Notify" for entire forum sections, you'll receive an e-mail every time a new thread is added.
Then also use notify for individual threads if you want to receive responses on that specific thread.
@donovank's and this one were both an accurate answer.
Notify feature is for that purpose (Email notification), I've tried it before and it's working fine. It is located on the upper right corner of the table header of the board/thread you're in. With this, bot won't be needed anymore.
Board/Section :
Specific thread :