Hey guys, I am new so be nice

So yesterday, the co-founder of Bitcoin said that he is selling his BTCs and then maybe moving to bitcoin cash! In less than 24 hours, coinbase add this to its wallet and then price were pumped up by a few small transactions to 8500$!
In a trade world, this is illegal, isn't it?
Shouldn't Bitcoin have some sort of self regulation to prevent people from doing this kinda stuff?
There are no regulations that exist for Bitcoin to prevent something like that, and there shouldn't be any kinds of regulation to prevent something like that since there isn't any point behind trying to regulate a completely free economy. It's always up to the free market to choose where it is going to go, that's the beauty of it all. if there's a pump, the market should correct it or it will stay at that price and the market will have to change to reflect that. Why would any kind of regulation be a benefit to the crypto economy?