Advertising as a source of consumer information is a market for lemons in and of itself. Everyone is free to claim innovation and deliver trash, and internet brands are a dime a dozen. Even just keeping out overt fraud/scams or propaganda campaigns is apparently a losing battle for platforms.

Reviewers/Influencers/interest-publications are often just a half-step above banner ads, but at least has more incentives than just "loudly capture attention" and "publish anything that pays the algorithmic sticker price".