There are two types of notifications on Facebook:
- some which you don’t want – join group, like page;
- and the ones you want – add friend, message.
What does Facebook do? They combine them until they irritate you.
On chess.com – there is one forced notification for the next lesson; once you do it, they immediately tell you you can’t do the next lesson.
Sites both push you away („go away, buy things, we annoy you”) and pull you („come to us, we have gifts, you’ll enjoy this”). This is very annoying.