User blog comment:Liveevillevi/Blogging/@comment-25205196-20160315191158

You can use them to talk about anything you would talk about on a blog or to say something about the game that can't really be included in a article. For example you can talk about strategy or a particular machine or anything really.

I'm not sure how it works but I think most recently updated blog posts show up somewhere... and they do show up in the activity log.