There are also 2 other tools One is https://alerthn.com https://alerthn.com that does full text search on topics and commenets. It works great for years. The

There are also 2 other tools One is https://alerthn.com https://alerthn.com that does full text search on topics and commenets. It works great for years. The other is http://www.hnreplies.com/ http://www.hnreplies.com/ and it sends email on replies to your comments. It works good, but it stops after some time but you can subscribe again.