In all seriousness, Facebook rolled out the new measure so people could get neck-deep in nostalgia, without the risk of running into overly painful memories (deaths of loved ones, divorces, etc.) -- this has been an issue for users since the nostalgia option was rolled out in March of this year.
Just search "On This Day," pull the page up and go to your preferences. From there, you can filter out specific days, or certain people all together.
Though, in my opinion, unless you have a traumatic experience lurking in your digital past, it's best to filter out only the best parts of your life. That way, your life -- however pathetic -- can only go up from here.
I don't know, just a thought. Feel free to erase me from your memory.