Not sure where to put this... but I noticed now that others are creating communities in this instance that I wasn't subscribed to any of the ones that were created after I had joined. Might not have even been subscribed to all of them that had existed when I did - it may have been just the community that i registered under..
So I guess this is just a reminder to all to periodically check the communities list so you're not missing out on the new new.
Yea, I made the same mental association to older forum/bump logic, but I found it quite jarring that the date of the bump was not visible from the listing, so I couldn't really get a sense for how fresh the overall feed was, and changed it for that reason