To be honest, I have never done collaborative posts until I joined TSW. 
I can see why you're wanting to limit them, aside from Flashbacks, as it does look similarly to just a massive onexone thread.
I like them enough, as it prevents from back to back cluttering, however I know that it's properly preferable to hashing dialogue back and forth. I think my overall lack of experience with collaborative posting makes me treat them as onexone responses? As I said, I've never done them prior to this story.

I was discussing this with JJ actually, of exactly what and where and who was going on in the entire Tree of Life scene, and where some events were being placed and occurring because they seem to stand off by themselves unless specified otherwise. We were trying to pin-point them exactly.

Oh and Prisk, a response is waiting for you. Ironically we're discussing collaborations now, but. Yeah.

Also, anyone having the same issue where you click on the latest post in the subscription window and it takes you to one page ahead -where nothing is obviously- and you have to click to the previous page and scroll all the way down just to read it? . - .
I hope this just isn't me.