Adverts seem to be heading into the gutter more and more. My pet hates are the cosmetic adverts that are so full of pseudo-scientific bullshit that years ago I started shouting "with extra Bullshittium" at the TV whenever one came on. Now that Bullshittium seems to be spreading to most other forms of advertising and more and more are pushing the boundaries of what they can get away with. A few are getting caught out, but most just get away with it.
I mostly treat all adverts as outright lies and instead do my research before I buy something. About the best an advert can do is bring to my attention that something exists. As soon as it tries to convince me that it will make me happier/prettier/healthier/etc. I mostly ignore that product and often the entire brand.