I recently added a random post carousel to my Wordpress site's homepage. I wanted to encourage deep linking to some of my interior posts as they have no inbound links from the homepage. I added a carousel of 12 random posts pulled from about 480 posts in total. The 12 posts shown are randomized and update on every page refresh. These posts are all indexed fine and exist about 2 levels deep, but I was hoping that a direct link from the homepage might boost them a bit.
After about 4 weeks I checked in Google Search Console I am finding that very few of the 480 posts are actually showing a link from the homepage at all. I am wondering if including title text for 12 random posts on my home page has watered down my home page's text with unrelated terms and may actually be hurting me. Has anyone actually tried using one of these random post carousels on their home page and what was the result? Thanks for any advice!