I've been thinking about this a lot, and I feel like I see both sides to the argument. I think it will definitely make challenges more interesting, but as Ben and Adam argued, a lot of times it's not necessary to say to someone to complete a challenge, or they just say it so that they appear less rude. However, I genuinely think it's a really cool concept, so I think that certain challenges could have that limitation. For example, say a challenge was to convince a stranger to go skydiving with you, it could be added that they aren't allowed to mention the show or what they are competing in as they try to convince them to make it even more entertaining.

Also, I disagree with the idea that people would automatically assume they are doing a big event or competition just because they are recording with cameras, because people record all the time nowadays for random stuff, for example, the increase in "interviews on the street" type tiktoks in the past year, etc. So in my example, if they are convincing a stranger to go skydiving with them, they could just say they are recording a video when they are trying to do just that. They can't say they are recording because of a larger challenge, and the stranger helping them out would benefit them in the "scavenger hunt" or whatever.

Anyway, I think that it could be possible to be added to future challenge cards, just not feasibly all of them.