User blog comment:Mira Laime/Introducing long-awaited Discussions updates/@comment-31486859-20190402125555/@comment-26339491-20190402170159

The Follow option is one of several things you can do with a post, that's why it's in that dropdown along with the other options.

What do you mean when you say you can't see old threads? How are you trying to get to them and where are you getting stuck?