Hi! No, I use a program for that, it's actually kinda cool, though I don't get "alerts" I just monitor it. It's mention.net. Highly recommend it if you have a lot of internet chatter you want to stay ahead of.

Funny story, Ycombinator is one of the reasons I got it. Since there's no great way to keep track of threads, it was a way for me to catalog and follow up with threads in these posts.