To reaffirm my philosophy on this subject: The moment you begin to harm other people or sentient beings for your own pleasure, adult or child, human or not, I see you as a sick fuck who deserves no glory. This does not, however, extend to celebrating death. For clarification, that only means I'm not going to partake in it. Whether you participate in reveling in a phile's death or not is up to you, and I'm not going to stop you if they're on my shitlist.
Twomad's done a lot of awful things in the latter half of his career, ranging from claiming a teen murdered in a hate crime as his girlfriend on Twitter as a sick joke, to genuinely attempting to have someone killed MULTIPLE times. It's also important to note that earlier before this, he had notable grooming accusations levied against him with surmounting evidence. He's not a good person, and shouldn't have any praise or defense given to him considering the things he's done.
However, I'm going to take time out of my day to party over his death via overdose. You can. I don't care. I have more important things to do than shine light on an irredeemable scumbag, and allowing him to be forgotten is more tarnishing to his spirit and history than celebration. Celebrating his death gives him remembrance.