So, from your profile, it is incredibly cringe, and I will assume that you are younger than me, so I'm going to give you some life advice.
When people tell you that something is wrong, it is most likely wrong. In this instance, you commenting on a 3 year old post is wrong. Sending people notifications coming from obsolete posts is the wrong thing to do, because it is annoying
If you ever want to make friends, you shouldn't be annoying