HNNotify.xyz: Subscribe to Your Hacker News Feed
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hnnotify.xyz
Also emails you less than 60 seconds after they make the comment.
[1]https://www.magicbell.com/ (This seems to be their main product, Couldn't find the HN page).
For my own websites, I could run a notifier daemon checking server logs for spikes from referrer domains. But that doesn't work for code hosting sites like GitHub.
(And that only applies to the “annoyed” aspect. His politeness is pretty dang constant.)
That said, I do think it is important to calibrate the quality of one’s own comments by looking at how others respond.