the content of that story violates the rules of Medium. It is using harassment by calling him impotent (and not in a metaphorical way).
In any case, this is clearly not harassment for a very simple reason: it is not directed at Zuckerberg. Even were Zuckerberg to be hurt by these claims, he is unlikely to see them without seeking them out, and so won't be harmed by them.
This author has quite a few posts that make some very strange and out there claims.