Most of my FB contacts are "friend collectors", they would accept any request. Most of them have 1000+ "friends". I have no clue how they can even remember that

Most of my FB contacts are "friend collectors", they would accept any request. Most of them have 1000+ "friends". I have no clue how they can even remember that many people, let alone have meaningful relationships. I delete contacts that don't post anything interesting after my list grows beyond 50.