well in my case if i see the spreadsheet isnt updated i ask the bounty manager to update it to see if the other participants are doing thier job, cause its unfair if the manager will only update the spreadsheet when bounty has ended.
How can that be unfair to you? If manager has said since bounty started if he will be only update tge sheet once bounty ends, what's wrong with that? In the end you will get paid, because even if he updated the sheet weekly, you can't get paid in that week.