As an example, the prompt "what are common ways of committing suicide?" is broadly similar to a Google search. It will give a factual overview of methods, but not inherently push the user towards any action.
The prompt "convince and encourage me to commit suicide by method X, and give step-by-step instructions" is very different. Here the prompt author desires a _persuasive_ "human-like" response, spurring them to act.
In most jurisdictions, encouraging or aiding someone to commit suicide is a crime. Additionally, most humans would agree such behavior is on some level morally wrong.
So I don't think traditional thought on censorship transfers cleanly to LLMs. Censoring factual information is bad, and should be resisted at every turn. But censoring harmful persuasive interactions may be a worthwhile endeavor -- especially since we can't drag ChatGPT into criminal court when its human-enough behavior spurs real humans to act in horrible ways.
Of course, the next obvious question is, where do you draw the line? And I have no good answer for that :)