Where and how do you want to fight them? The only way to fight them is to ignore them. When you find out a token or project is scam the best thing to do is to tell the community about the scam and everyone will avoid it. I don't know which other way to tackle it.
Very well said buddy. Those investors or any individual that have been find out that a certain post ICO is a scam, the best thing that they could do is exposed it eventually in the crypto community. But that way, you not literally fight the scammers but you punch them in others way. Another thing is that, you help other people to avoid that scam ICO and to be not another victim of those scammers.
Since we all know and aware that we cannot truly fight them in a way that wanted to arrest them and get out money back, there are still ways we can do to make them pay for what they've done.
Yes, you may do that. But, that can't stop them. They will create again a project, new strategies, etc. Best thing to do is to ignore. We all know that investing here in cryptos is risky. You really have to do a deep research in that certain project. Before investing, you have to know the reason why they create that project. If it seems worthless, then back off.