For YouTube at least I can give a clear example. I’m pretty sure they’ve cleared this up now but for a while you had no way to get consistent notifications of n

For YouTube at least I can give a clear example. I’m pretty sure they’ve cleared this up now but for a while you had no way to get consistent notifications of new content from creators you’d explicitly subscribed to. Twitter is similar in this way. If I follow someone, I want to see their tweets. Full stop. I don’t want them arbitrarily hidden from my timeline by an algorithm. Twitter offers a chronological timeline but has repeatedly reset my user preference for it. If there weren’t third party applications that respected my preference I definitely would not be using it anymore.