I have read and re-read the statement. Your interpretation is only one possible one. Only the OP can say for sure. It's certainly not a reason to ream someone who is trying to be helpful.

If I say "politicians have always been liars", is that a statement of my pesonal experience, or a global statement? You have no way of knowing a priori, so don't make assumptions that you know what's in everyone's mind, unless you're really The Amazing Kreskin...