At the bottom of the help topic thread is the third option, "Email me all responses to this thread, Switching between Profile & Details? Yes No "
I'm not getting notifications of my questions being answered, even though I've checked Yes. Is there some other setting I also need to pay attention to? I won't get an email that this is answered, so I'll need to come back to see!

Has never been reliable. Sometimes it works and sometimes not.

I realized it's been a few years!