Is there any way to bookmark or save individual posts? That would be a nice feature.

Often I subscribe to a thread but there is so much useless chatter I just end up unsubscribing. What I would like to do is to be able to save a particular post somewhere so that I can go back and reference that post at another time.

There's no way to do it in the forums. You could bookmark it in the browser: click on the post number in the right upper corner of the post and bookmark that page.