Influencer is a category of people that ad agencies are interested in. It's anyone with a large enough audience and influence over it. They are of interest to a

Influencer is a category of people that ad agencies are interested in. It's anyone with a large enough audience and influence over it. They are of interest to ad agencies because an endorsement will turn into more buyers. Anything other than that doesn't matter. It doesn't matter if the influencer is a YouTuber who does their original research and tech breakdowns to give an informed opinion of a product, or if it's an Instagram model that is willing to hold a purse for a photo. Both, when paid to endorse a product, will influence people into buying that product. LTT's sponsor breaks in the middle of videos (that usually have nothing to do with the subject matter of the video itself) influence people into buying those products. So, LTT is an influencer.