Whether someone is paid or not, they are still representing your “company” so I would still suggest vetting that individual and formalizing the relationship to a degree. If little things like this are making you think twice on someone, it’s likely for the better you don’t make them a moderator. Or vice versa, if you as an admin are having second thoughts relinquishing control over small things like this, are you ready for/need staff or can you get by with the bare minimum? There are a lot more critical details staff will need access to as you grow so plan how that gets attributed/promoted too.
I don’t think many people know this but many of the IC staff became staff through having communities of our own. So I don’t mean to say these things from a “I know better” place but we do have real world experience, yet are happy to be proven wrong or if there are other scenarios.
I typically don’t have a “contract” for my community staff but a do/don’t list, minimum tenure before becoming staff, quick questionnaire wouldn’t be unheard of, training steps starting them out, etc… all a good time for you to vet them further or for them to opt out 😉 .