Almost every site that "promotes" these schemes gives a disclaimer (I wont bother to repeat as you have all heard it a million times). So unless you can find some kind of proof that they are actually in collusion with these schemes, rather than simply benefiting from them, I don't think there is much that can or even should be done.

If someone gave the "non-advice" of buying bitconnect 6 months ago as a short term hold, many investors who followed that advice would have done very well. A scam? Often one way tell if someone is scamming you is to look to see if they are putting their money where their mouth is, telling you to do one thing and they do another. But with Ponzi schemes the scammers need to be invested, at least in the beginning.

Sites like coin market cap which list prices and other data should not be censored from doing so. They are simply giving out information. Isn't that what decentralization is about? On the other hand it is a worthwhile question to ask is whether accepting advertising dollars from highly questionable ventures is something they should be held accountable for. But even if the answer is "yes", then what standard should they be held to? Especially since many experts, even blockchain bulls, say that most of the coins will go to zero at some time. This is going to be a lot like the dot.com bubble, with a lot of blood in the streets. But it will also give rise to some of the biggest economic powerhouses the world has ever known. Like Bob Dylan said, "the wheel is still in spin and there is no telling who that it's naming".

Maybe the answer is to let people vote with their virtual feet. If people don't like sites that shill junk, then I am sure the demand will create new sites that won't . I think it is important to remember that the "establishment" wants to regulate and control this space (at best), asking them to come in for something like this will just be the beginning. It will be like a little country that has civil unrest and accepts help from a larger country, but when the unrest is over the larger country decides to never leave.