If I were designing this interface again today, the visual design in these mockups would lean less heavily on gradients, grain, and drop-shadows, and I’d probably go another direction with the icon art approach. But UX-wise, I still think it’s got some really interesting interface control elements.
For instance, the dock along the lower left-hand side of the universal nav sidebar at first instance might appear to be visual clutter. But one of the core use cases of the app was aiming to allow users access to missions across organizations — not completely siloing the workspaces like Slack now does, for example. (Slack did not exist at this point, of course.) So, to promote frequent users to get multi-mission usage out of the app, this dock was added as a “recent history” of mission pages and user profiles — giving quick access to frequently used parts of the sites. Later plans might’ve added “pinning” of often-used missions or profiles so that’d they’d always appear on the dock.
Particularly since this interface was intended for an alpha product, I focused on manual refresh devices (ex: “Load more” button at bottom of activity streams vs. automatic loading once having reached the bottom, “Apply” button for activity stream filter checkboxes) so as to not to needlessly overwhelm server capacity, anticipating there might be significant performance limits in early code. Likewise, I relied on extra clicks to trigger the third-column loading of tag clouds, comment threads, and other interactions.