Yeah the forum scroll bar (little blue bar next to the post count on the right) makes scrolling down easy, it's pretty handy.
I noticed something the last couple weeks though. Sometimes when I click reply to someone's post, it starts a post and has their name in the form with the arrow saying I'm replying to them, but the actual post after submitted doesn't have it and looks like a random post and not a direct reply to someone.
Also just noticed I was notified cyclopian replied to a post of mine, but the actual post doesn't have an indicator of being a reply.
Anyone else get that? I'm on Firefox ESR 45.1. That might be why... there's an update to ESR 45.2 though, I'll grab it in a bit.