Two things landed this week.
First, the Leaderboard is clickable now. Click any username and you get a full trends page for that account — a Completion Score history chart, a sparkline for every collection group (mounts, pets, toys, you name it), and a table showing exactly what went up or down day to day, colour-coded green/red. Good for bragging rights, good for stalking your own progress.
Second, and less flashy but more important: sync got more thorough. Titles, achievements, heirlooms and reputation-based "exalted" tracking used to only check a handful of your characters, on the assumption that stuff like this is the same no matter who you log into. Turns out that's not quite true — some titles and achievements only count on the specific character that earned them. If you've got a big roster, that meant things could go missing from your totals even though you genuinely had them.
Now every sync checks every character. If your numbers tick up a bit after your next sync, that's why — not new content, just us finally counting what you already had.
Have fun collecting.