Do you not consider the targeted harassment by an organized group of people with the premeditated goal of getting them to commit suicide to be homicide?
That's not the definition of murder though, even if you feel like it is. I know we're in a post-fact world, but you don't get to magically decide what words mean.
It’s usually, when criminally charged, been charged as a lesser degree of homicide (typically some form of manslaughter), but that's because its hard in that kind of case to prove premeditation, as the causation element is the same between murder and manslaughter.
If there is actual premeditation, it fits within the definition of murder.
It's not homicide nor manslaughter neither, and has no concept of "premeditation" at all. It's was a 10 page years old thread on an obscure gossip website.
He was not doxxed (no one even knew his name), did not have threats posted there... I fail to see how it can even closely be related to "murder".
Completely different scenario that's not even closely related. This example involved an intimate partner that was on the phone with the victim when he was clearly in an altered state, instructing him to go back into harm's way to kill himself.
https://arstechnica.com/gaming/2011/08/accuracy-takes-power-...
Tragic loss, RIP.