I wrote a little webapp called LDNotify that uses the new API to check for new comments on your game and creates a desktop notification to let you know if there are any.
It should work in all modern browsers, and Microsoft Edge*. The notifications do not work on mobile, but I don’t think that’s a real use case anyway.
The tab with the page has to be open in the background for notifications to be triggered.
I find it useful while rating other peoples games, maybe you do too
Get it here: LDNotify.timtips.com
*If you are using Microsoft Edge, reload the page after giving the permission for notifications to make it work – even in Edge.