Absolutely true, anon! In fandom, with recent fanworks, it is often possible to reach out to the author and ask them if certain material is in their fiction.

Sadly, with older fanfic, and with printed media the author might not be available to tell you.

In cases like that I really encourage people to ask a friend they know will be okay to preview the material for them and tell them if it’s safe.

But I definitely encourage fan writers to be kind and courteous if people do reach out to them with questions about if certain triggers are present in their work, especially if the person reaching out is being kind and courteous to them.