-More gameplay stats-

1. How many [SS/S/A/Silver SS/S] ranks combined.
2. Total Playtime combined.

-Some mapping focused stats-

1. Total Kudosu
2. Total Ranked beatmaps (and maybe GDs)

Here are some more stats that I feel are a bit far fetched / not frequently achieved by casual / low-end players.

1. Total first ranks
2. Total score & hits

yeah, it would be cool to see them

This would be a neat addition!