Picture rails are a kitschy and twee feature that few people today even know their purpose, but anyone who tells you that they’re just as good for hanging things on are committing perjury

In my humble opinion, they are significantly better than pounding a nail into drywall. Of course, I also have an absurdly large collection of framed photographs and other art, all of varying sizes, and I love swapping frames around throughout my home. Having picture rails throughout my house means I don't have to keep pounding holes in the wall every time I replace that 20x20" photograph of my toddler shot in a square aspect ratio with a 16x20 shot on my 4x5, or whatever.

Many people only think of picture rail as what you find in old Victorian homes, but modern picture rail can be much less obtrusive and lightweight. I have a lot of framed art as well. When I finally bought a house I installed STAS minirail throughout. The "wires" are transparent Perlon filament, and anything you hang can instantly be adjusted vertically and horizontally.

This is way better than arguing with partner about the proper height, making a destructive hole, then having to cover/patch when opinions or artwork change. My walls are not drywall, so that was a big factor, but the freedom to arrange/rearrange is a major benefit.

Do picture rails work for gallery walls (clusters of frames)?

And the author completely misses the point thinking it's somehow mandatory in plaster walls, when it's just a convenience thing that avoids making holes in the plaster…