The rules says 10 per week or 50 per campaign, so which is it?
Both. You will receive stake only if you have made 10 posts in a week. But to eligible the reward/bounty, you must make 50 posts until the ICO finished. Got it?
I understood, but why there is no update since 08/22?
Dunno, that's manager's decision.
The campaign manager posted here on September 8 stating there will be a slight delay in the bounty post counting because of the ICO but will tally everything by the end of the week. He will check from time to time the posts count.