EisMe: Do you truly believe nothing has changed? Or is prophecy unfolding in ways you haven’t yet considered?
Nothing has changed. It should not surprise us that the earliest failed prophets would be mindful that they would be mocked. I'm sure that many of the people who made failed predictions over the centuries have also been mocked. Certainly, the ones in modern times have been mocked mercilessly. Harold Camping is a good example. Did the mockery make his predictions any less wrong? No, they did not.
As for the signs, there have been many periods in the past when things were far worse than they are today. The Bubonic Plague may have killed as many as a third of the population of the planet at the time, and there have been times with terrible suffering from famine and war and natural disasters. Indeed, the one way in which the modern day differs is that we are suffering less from these problems.