About #triggers and #TriggerWarnings
They are a disability issue and so are a social issue. They boil down to what type of relationships we hope to foster, which can add up to what type of society we choose to reproduce.
We may choose to perpetuate the social inertia, and default to making it a "your disability : your problem : your responsibility" issue.
Or we may choose to recognize the social model of disability. We may choose to take, collective or individual, responsibility for the choices we make that affect others. Choices that make content and places inaccessible or harmful to many. Choices that include or exclude, that enable and empower or discriminate against.