I think it is possible that some very famous people run a forum and blog to meet new people online who share the same interests like video games, music, etc.
But, famous people may not use their real name, and tell their co-workers, the news, and their friends, and family about their forum or blog which they run for fun since it may cause a lot of trolls, spammers, and strangers to spam their forum, and blog with unwanted comments, and spam.
I think once a blog gets thousands or millions of new members who are fans of a famous person, it would be harder for the owner to interact with individual member, and get to know them more if a famous person's website get a lot of new members who post a lot of posts a day, and try to contact them with Personal messages on Furums and Blogs.
But, famous people may not use their real name, and tell their co-workers, the news, and their friends, and family about their forum or blog which they run for fun since it may cause a lot of trolls, spammers, and strangers to spam their forum, and blog with unwanted comments, and spam.
I think once a blog gets thousands or millions of new members who are fans of a famous person, it would be harder for the owner to interact with individual member, and get to know them more if a famous person's website get a lot of new members who post a lot of posts a day, and try to contact them with Personal messages on Furums and Blogs.