It is important to note that these tactics are illegal in the regulated stock market exchanges. As the cryptocurrency world faces more regulations as time goes on, It is safe to say that the whales will eventually lose their power to manipulate the market so readily and easily.
What's the unique and difference both of stock exchanges and cryptocurrency exchanges if cryptocurrency exchanges will be more regulated? It's will make less decentralization and it's not what's people want it.
Those 2 ways you mentioned above is only about buy and sell order, IMO FOMO and FUD is a major play in this space not from whales. I don't really care when I saw big amount order, I just do what I want to do. Just like the last FUD when China ban Bitcoin (again) people were do panic selling.