Incredible that they would implement such a dark pattern using easily discoverable client-side code. I've seen these kind of messages before on several travel

Incredible that they would implement such a dark pattern using easily discoverable client-side code. I've seen these kind of messages before on several travel sites, and always immediately figured they were bogus, but I obviously can't be 100% certain they didn't influence me in some way - but how can it possibly be legal to deliberately lie like this to try to trick people into giving you money?