It can theoretically be done..... once SMT is implemented..
Using GPT as an example, an Oracle-based SMT can be coded in such a way that an account can only own a max of 1 such token. basically making it a Boolean function for apps to see if an account has been "verified" or "human".
So to "determine" how viral is a post, it simply ranks post by how many "verified" votes it has..
Now its all hypothetical, im just playing with possibilities like the armchair expert coder i am. Maybe im wrong and its all bollocks? But i dont see why it cant be done.
Maybe someone can come up with a "Decentralized Social Media that values human interaction"? if @ned's dream of 100,000 apps running on Steem comes even half to fruition.. i dont see why not one of the apps using that as a USP..
i'm an alt account to @awesomianist so that his profile isn't flooded with Musing post