Am I the only person who is irritated by the statement “What you need to know” in online stories?

Where has this phrase come from? Has it been audience tested, or have people just copied other publications?

I find it patronising and I don’t know how a copy writer in a website can know what I already know about something and what I might want to know about it.

My normal reaction is “I’ll decide what I want or need to know about something, not you.” Harrumph.