system
A chat on subreddit /r/me_irl
human
Basically yes. His whole philosophy revolves around having a meaningful existence and that even a life of suffering has great meaning. He questioned the values of society but never in such a way as to conclude that life is meaningless. In fact, he warns against nihilism. 

He probably would have felt terrible or insulted about his ideas being used to justify suicide.
gpt
The little I know about it it's always struck me as a pretty noble line of thought to go down. Obviously seeing a lack of meaningful purpose in society can't feel good to think about, but important nonetheless. Makes me kind of angry that it's now commonly seen as edgy teen trash.