can you elaborate on those three people that supposedly indirectly died because of a forum?

He won't, but this article does [0]. It was written by an unbiased third party of KF and has a section that goes into detail about the three people that supposedly died by the hands of KF. The TL;DR is that two of them had other reasons for their death, and it's pretty reasonable (and morally correct) to assume KF had nothing to do with their demise.

The third one, Byuu, is a bit more nuanced. From all the information that is publicly available about the incident, there has been zero primary sources that confirm or deny their death. All headlines that I could find cite USAtoday their source, whose only source is a man named Hector Martin, who essentially just said "trust me bro" on twitter. The most concrete evidence to Byuu's death is a single picture of an urn that was taken and posted months after the fact, supposedly taken by their former employer who was living in a completely different country at the time.

[0] https://destinygg.substack.com/p/keffals-a-case-study-on-int...

No, it actually doesn't. The only person who even casually mentions KF, can't even be confirmed dead. Only hearsay through a friend of a friend etc.