Problem is that obituaries tend to be written by the loved ones of the deceased, and Phil has no one to write one for him.
You could try to check local Portland records or see if anything happened at his place, but IIRC, we don't even know where he lives now. By the time he moved out of his previous apartment, he became so boring that nobody took time to find out where he went.
I don't think he's dead, I think he's just keeping his head down more than usual. Either his Antifa buddies are tard wrangling him, or he's trying to play some dumb autistic version of 4D chess by staying quiet now that his subforum is gone, and hope the Farms will do something to give him attention and he can use for pity.
Or maybe he's finally learned to stop feeding the trolls and is being extra careful now that the ADF subforum is gone. Even TJ "Cowlick" Church eventually learned to stop feeding the trolls.