Now that readers can respond to individual comments here at the big LH, you need a way to keep track of the comments directed at you. While I hope we'll have something to do this built into the site someday, in the meantime it can be done using Yahoo! Pipes.
Filter Lifehacker's comment feed to see only the items with @your-name in them using my new pipe. Enter your your name as it appears when you post into the search box and grab the results as a feed so you never miss it when another reader responds to one of your comments.
Note that when you enter your user name, unless you've been responded to in the last 10 comments published here, there won't be any results. But subscribing to the feed, over time, will yield results when other commenters respond to you. Let me know if you have any troubles with this one, and feel free to clone, riff and improve as you see fit.