This is what you would expect from a currency that is valued arbitrarily.
It may not be crashing the value, but if we keep seeing hacks sustained at this frequency, it could slow or halt what might otherwise be continued growth.
That is what we saw for bitcoin, however there is still more and more people buying into it.
ETH did not participate in the big spike of BTC back-end of last week and is now tracking down today.
I don't think they do. It's up 1000% or something since a year ago so it probably will take a while until people lose faith