This could and should be checked by the bounty provider.Most of the time there are rules for this kind of jobs. As example, If the translation is done by google the bounty provider give him/her a neg.
That's true the campaign manager is more wiser, he knows that people are using software to translate and he knows when a translator is using one so let's give this job to the manager.We have a lot of good campaign manager and he knows what qualifies and what are not.