Logic model, not a design spec. The social tier-1 holds Popular (non-personalized public UGC, alive on day one) and People. Watchlist stays anchored on one path, and My Stuff dissolves into Profile, now a real destination. Use Label to swap Community for Activity, which also renames Profile's archive tab to History to avoid a name clash. Flip For You to its own tab to compare the board's three-tab version against keeping the personalized feed in Home.