I agree all lies are not equal. I do struggle with the idea of applying the consequences of a particular lie to establish the degree or evilness of that lie. If a 16 year old makes up a lie about a 16 year old female classmate sleeping with a boy, and the victim runs home crying in embarrassment as a result, is that lie any different than if the victim went home and committed suicide? The outcomes were certainly different, but the lies, not so much.
Personally, I don't find the fact that "fake news" of varying degrees is finding its way into the public domain to a greater level, or that more people are believing that news and/or republishing it. That's been around since people started communicating with one another.
I'm more interested in observing the consequences. Anyone who frequents internet message boards like this one has certainly observed the phenomena in the past couple of decades of an increased willingness of people to write things that are mean, malicious and just plain false. Probably due in large part to the feeling of anonymity created by communicating from a computer or electronic device alone, in the safety of our own private spaces. When will defamation law catch up, if at all? I personally think it will, but that has my curiosity.