FUD can really work for these manipulations. But there have been FUDs in the past that never had work and that's why when there are FUDs like this, they're becoming more extreme than in the past.
I expect that there's more to these FUDs and they're going to be more brutal and fearing when they come but remember, that all you have to think about is the long term and accumulate when they exists at the moment for you to take advantage of it.