Con Sotidis explains why LinkedIn recommendations matter more than most people think. He says to request or update them every 6 to 8 months because they work as social proof that actually moves people to hire or work with you.
Chapters
The most underrated section of LinkedIn is recommendations. If you look at LinkedIn as a whole, from the top to the bottom, it's always about you talking about yourself. I am this, this is my profile pic, this is my banner, this is my about section, this is my experience, blah, blah. There's only one section in the whole LinkedIn profile. I don't know what they have down the bottom, to be honest. I've actually written to LinkedIn a long time ago and said you should put this higher up. That's where people vouch for you. People are putting their name on the line to talk about you and how you've helped them. This is a social proof of every LinkedIn profile. If you haven't got recommendations, then people don't know what success or impact you've had. Get recommendations. Get them every 6 months to 8 months. Update them.