/u/theverbiageecstatic has done the work of setting up a service to let you get an email when someone replies to a comment of yours on SlateStarCodex.¹

You can sign up by going to "https://sscnotify.bakkot.com/subscribe?author_name=(your handle on SSC)". For example, I subscribed at https://sscnotify.bakkot.com/subscribe?author_name=Bakkot. It is, I believe, case sensitive, so be careful - it's probably easiest to just copy-paste your name from SSC if it's at all complex. (This will get more streamlined eventually.)

This is currently experimental, so don't be too surprised if things break. That said, it should work - give it a try, and leave feedback here!

^{1. In fact this was done several weeks ago and I didn't get to testing it until now.}