When a person who constantly makes the same prediction does it again, there's really nothing special about it. If it was some prominent economist who actually makes in-depth analysis and is not known to have biases or ulterior motives, then it would be something that you would want to pay attention to.
Sooner or later we'll have a global economic crisis again, but this doesn't mean that those who warned about it were right - after all, if you make the same prediction over and over, you will get right eventually, but you will also be wrong most of the time. If they can't predict a close enough timing, such predictions are worthless.