I could see myself spending a lot of time on a site where I could maintain one profile/habit for all of them. Each of those alone I enjoy, but I've never been able to make it a regular thing to go to a site for just one of them. I love movies but I'm not so much of a cinephile to put a lot of time into letterboxd, and so on.
Pretty much every day, one of those is important to me. But each of them alone has gaps in my life where I may not care about them much for a few weeks to a few months at a time.