While line numbers are common/required for coding environments, I feel like they’re pretty uncommon in editors focused on writing.
What problem do they solve for you personally in markdown?
Some of my entries get really long and I share the markdown files with other people, and they open them in IDE and reference the line numbers but since I’m looking at them in Deepdwn, I don’t have the associated line numbers to know what they’re looking at so I end up opening what started in Deepdwn in say VS Code.