Some ads are inappropriate, I agree. We had some folks a while back complaining about food ads that looked so good, they did not need to be on a health-related website.
With Premium membership, I can't see ads, so don't know what you all are seeing. If you can post a screenshot of ones that offend you, that would help the tech guys identify them and track them down.
P.S. erinanda, you are right, though; sometimes there will be ads that pop up on any site based on your surfing history. A few years ago I dressed as a gothic slut for Halloween and searched the internet looking for a bustier. The ads that showed up in the subsequent weeks were interesting, to say the least!
And now that you don't have to be perfect, you can be good.