Ofcourse it is!
Nowadays, I notice most of bounties have strick rules, making bounties more organize and I like that Bounty Manager requesting Proof of Authentication to limit scammer .
It's been one of major mistakes of bounty hunter like me not to read rules and requirements of each bounties ending up not getting stakes so it's very important to read and understand each rules to ensure that we're doing the right thing and not wasting our time and effort.
everything that is done must have rules that must be obeyed. Actually, among us there are many people who do not cultivate reading, so many people are trapped because of their own behavior.
I was also not paid because I was too careless and thought that the rules were not important, even if we ignored the rules, the impact would be enormous.