One would hope so, but the cynic in me doesn't see it happening. "Rationality" isn't exactly something speculators are renowned for. Just look at how stock markets reacted not that long ago to a bunch of no-name companies simply changing their name to include the word "blockchain". Or how banks and hedge funds happily trade derivatives in things where the underlying asset is just toxic, repackaged debt. I, sadly, believe there will always be a market to pump and dump worthless crap, although I genuinely wish that wasn't so.