Where is the metric grin++ is the most downloaded?
Grin++ has funded firstly by OC, also inflation bounty given to Burkett (grin++ Node C implementation) and CC has funded until Grim wallet appears.
Ironbelly is funded by OC, it was more widely used but abandoned as well.
Which projects?
Ledger HD wallet ?
Atomic Swaps ?
Mwixnet ?
Gui Wallet ?
Grin documentation ?
All spent by consensus.