Built a small web app that sends email notifications whenever someone replies to one of your comments or posts on Hacker News. And if you don't want to share your email, I also created a tool on the same site where you can view the replies received over the past 24 hours; it's on this page: https://hackernewsalerts.com/view-comments-replies/
Yes! That's what prompted me to build it. And it's already paying off for me as I got a notification about your comment which I would've missed otherwise: https://imgur.com/a/uSeahaK
The notification email's subject is always "New comments/replies on Hacker News"
This causes Gmail to sometimes combine them into a single "conversation."
So it would be nice if the notification email included the title of the post.
The title and original comment would be useful in the body of the message, as well.
(See how https://www.hnreplies.com does this)