So this is my first real usage of Flow in the wild and the main problem I encountered was being able to see where to post my comment - to see whether it was a new topic or whether there was somewhere in particular I should post it - I basically went down the list closing every single open topic to make sure.
Is there any plans for some kind of high level overview of open topics e.g. a table of contents that shows when you hover over?
One thing that could be interesting is if when I type something, if an existing topic seems to be talking about the same sort of thing I get pointed to it. "Hey user xyz seems to be talking about a similar issue in this topic". That's going into the land of Natural Language processing however and might be a bit ambitious :-)
PS. I've only just noticed the collapse icons to the top right - I think these are pretty hidden almost invisible. PPS. Love it. Feels a pleasure to use - auto expanding and interface is lovely.