They have an incentive to be honest I think influencers have more of an incentive to be dishonest than to be honest. If they tell a hotel "I'll promote you to

They have an incentive to be honest I think influencers have more of an incentive to be dishonest than to be honest. If they tell a hotel "I'll promote you to all of my followers if you give me a week's stay" and then they go on to tell their followers "This place is crap, stay away", that's going to reduce their future business. If they tell their followers to go to a crap hotel, then they can just say "Oh, it must have changed since I was there". And indeed, by revealing themselves to the hotel beforehand, they've tainted the experience, the hotel is going to treat them differently.