If such laws are invented, it will be good for the industry. But it is so easy to circumvent them, that I have serious doubts, that they can be effective.
A lot of the pump and dump activity is hard to prove. Except for the most blatant and stupid schemes.
I dont regulation can touch pump and dump. Its about market mechanism or supply and demand. Pump and dump is about market manipulation and its hard to prove market manipulation or price manipulation. Regulation should touch the project itself, if the project are scam, the team should put in jail