@Magisch Suicide posts get deleted by moderators anyway, so if a post is threatening suicide, this is a good approach > Votes/rep will get invalidated, and a user won't feel worse pushing them over the edge.
For everything else, like the post Anne and I were discussing (this one: https://interpersonal.stackexchange.com/questions/10624/im-going-to-see-my-father-for-the-first-time-in-26-years-and-im-terrified-that) I do believe it is worth keeping around 0 either