Is phone book an ad? The fact I bought something does not mean I did it because ad convinced me. When one buys a car presume they check what is available on the market and select option based on comparison. Same with travel, you don’t visit place because you saw poster somewhere, you have limit time so you find a list of popular options and pick what to visit. It’s exactly what you called it - research and review. It’s people rating things helping you make your choices, not companies convincing this is what you want to buy by showing you 10 seconds stupid ass video. Or at least I hope. I never understood the concept of ads beyond informing that this business exists. From my perspective could be just brand name and what it sells. No difference to me. I always thought it would be much better to just have site list of businesses with description and reviews