“some readers emailed me and they told me they struggled with my long articles because they had dyslexia or other reading issues it was just hard for them to consume it so to help those very highly valued readers... I started a podcast where narrated my articles”

Treat reader complaints as format-validation data

When paying subscribers complain about HOW they can't consume your work — not what — that's the validation signal for a new format. Arvid's entire podcast exists because dyslexic readers emailed him. Don't dismiss accessibility feedback as edge cases; it's the cheapest market research you'll ever get on what format to add next.