...try it out for yourself. Post a critical thread about how Trump has been handling North Korea, and regardless of how outrageous Trump has acted, you will get someone posting that Trump's actions are not really having any effect one way or the other because North Korea is just crazy.
Of course, given that the Trump administration is increasing tensions with Iran, which did reach a nuclear deal under President Obama, and has launched cruise missiles into Syria on an impulse, and announced that era of strategic patience with North Korea is over, as well as threatened to rain fire on North Korea, then perhaps North Korea is actually acting in a rationale manner. Put another way, why hasn't Trump resisted the urge to launch cruise missiles into North Korea? Because North Korea might start shooting into Seoul.
If Hillary Clinton was President, she would be easing tensions with Iran as a reward for negotiating regarding their nukes, she would not be alienating key allies, and she would not be boasting about how the U.S. could turn North Korea into a crater, which pretty much invites North Korea to accelerate its nuclear testing program as a deterrent. North Korea sees how Republicans are still itching to start a war with Iran, since they have not developed a nuclear arsenal. Trump's policies reward aggression and punish diplomacy.