Many people are susceptible to curses (many more than would think to call it that, or understand what’s going on with them, or admit it), so asserting how non-existent curses are and shaming and ridiculing them seems er… like a skeptic’s version of “tough love”?
It also seems to me that just because a skeptic can think of a superstitious mistake, doesn’t mean the entire category of human behavior doesn’t exist and have major impacts. For example a person’s conscience responding to angry/hurt reactions of others is a kind of curse, as is family trauma, guilt, and all sorts of other effects that a materialist or skeptic might prefer to categorize as psychology.
I think people have tried to curse me.
I have also had people tell me about curses in the sense of patterns of attitude passed down through generation, which were effective to relate to in that way. If I had a skeptical block of “oh the word curse? I must go into rejection of nonsense mode now!” I would not have been able to receive the valuable input from that attention.