You can create saved searches, like sorting by new for a tag you're interested in. I don't have email notifications setup, but from time to time I visit my saved search for pytest questions -- which is a subject less inundated with homework questions and more with people trying to do their work, unsure of how to integrate their ideas with a testing framework.

Though, some of my most popular answers have come from digging a little deeper on an older question and adding a better write-up, or simply answering a question for a newer version of the technology at hand.

When it's a technology you use (or had used) everyday, it's easier to get a sense of the answers you would appreciate if you'd stumbled there from Google