Yes this absolutely not necessary and I wonder what they are turning bounties into. If probably English isn't accepted in the campaign I think there are sections whereby Bounty Manager asked to contact them via telegram before one can write on the project. So even if the writers English isn't okay to the Bounty Manager I still think he have every right not to reward such hunters than asking for Certificate. If he is going to drop some stakes for that, it will be better, if not. No need.