Are the ones that you can’t follow the newer type of classified posts? I noticed that the other day on another forum with the same format. I’m not sure why that is, but I’ll try to get an answer for you and maybe we can fix it.
When you first click on the handgun forum, there is a follow button on the top right. With this you can follow every ad on the forum, even new ones that are posted. As far as following a single thread, I’m still waiting to get an answer on that.