I can't think of any. Give me a few that you think are "hateful"
>> I can’t think of any. Give me a few that you think are “hateful”<<
I’m thinking of the word hateful used as an adjective that denotes an action characterized by malice.
With that in mind, a person who, without any need to do so, reveals something truthful about someone with the specific intention of harming that person, the telling of that truth would be hateful. One example should suffice from which it should be obvious that a multitude of other examples can be easily imagined.
Let us suppose that when a teenager I had a long and intimate relationship with a young lady who suddenly terminates our relationship and becomes engaged to marry another man. Because of my bitterness about being rejected I contact this other man and give him a detailed but completely truthful account of my intimate relationship with his intended bride. My revelations to this man are truthful, but they are also quite obviously hateful.