I don't use a whole lot of social media with targeting as part of the core feature set (just Instagram and Snapchat.) Instagram has their algo honed into exactly the type of people I like to see, and my search page is filled with basically nothing except that. This is despite the fact that I don't engage (comment or like) with any posts. They must have some intense screen lingering analytics to figure out what people like. I find it very annoying and wish I could see what data they're basing recommendations on. It's a large impetus for me to get rid of my Instagram account entirely.