One of the reasons I do not comment or like posts by popular persons on Facebook is that I start to receive several notifications that other people have also liked or commented on the same post. Notifications are fine if they are one or two, but getting 100s of notifications is definitely not cool.
However, looks like Facebook has heeded my complaints from the past about this and now allows users to unsubscribe from notifications for comments or likes made on other’s posts or even on your own posts.
Once you comment or like a post, you will now also see a link called "Unsubscribe", clicking on which will stop sending you notifications if anyone else comments or likes the same post. Once you have unsubscribed from the post, you can also Subscribe back to it by clicking on the "Subscribe" link. Definitely helpful and will keep your notifications in Facebook to the minimal.