A prominent SEO personality says that postings to social media accounts is an important signal to search engines simply because they indicate website activity.
But if I post articles to my website, search engines already detect website activity. Meanwhile, posting to social media accounts takes precious time.
I know from work with clients that only certain business categories get clicks from social accounts to websites. Others get very little. So what is the benefit of maintaining social media accounts if they don't drive clicks, sales or SEO ranking signals?